This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
How does electron deficient compound `BF_(3)` achieve electron saturation, i.e. fully occupied outer electronic shells? |
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Answer» `BF_(3)` achieves electronic configuration by the following ways: a.`ppi-ppi` back bonding, i.e. by donation of electron pair from filled `2p`-orbital of `F` to vacant `2p`-orbital of `B`. b. Formation of complexes, i.e. by accepting a pair of electron from donor ion/molecule in vacant `2p`-orbital of `B`, e.g. `F_(3)Blarr:NH_(3)`. Boron compounds thus behaves as a Lewis acids. |
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| 2. |
The value of `K_(p)` for the reaction `CO_(2)(g)+C(s)hArr2CO(g)` is `3.0` bar at `1000 K`. If initially `P_(CO_(2)) = 0.48` bar, `P_(CO) = 0` bar and pure graphite is present then determine equilibrium partial pressue of `CO` and `CO_(2)` .A. `P_(CO)=0.15bar, P_(CO_(2))= 0.66 bar`B. `P_(CO)=0.66 bar, P_(CO_(2))= 0.15 bar`C. `P_(CO)=0.33 bar, P_(CO_(2))= 0.66 bar`D. `P_(CO)= 0.66 bar, P_(CO_(2)) = 0.33 bar` |
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Answer» Correct Answer - B The value of `K_(p)` for the reaction ………….. `{:(,CO_(2)(g)+,C(s)hArr2,CO(g)),(t=0,0.48,-,0),(t=equi^(m),0.48-x,-,2x):}` `K_(p) = ((2x)^(2))/((0.48-x)) = 3` `x = 0.33 bar` |
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| 3. |
Which of the following statements regarding Indian agriculture is correct? (a) It contributes nearly 25 per cent of the GDP (b) India has the least area in the world under pulse crops (c) The share of food grains in gross cropped area has increased since independence (d) Agriculture accounts for twenty per cent of India's exports |
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Answer» (a) It contributes nearly 25 per cent of the GDP |
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| 4. |
Why is agricultural productivity in India low both on the basis of per worker and per hectare of land? 1. pressure of population on land 2. large landholdings in few hands 3. high capital base 4. dominance of subsistence farming (a) 1, 2 and 3 (b) 2, 3 and 4 (c) 1, 3 and 4 (d) 1 and 4 |
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Answer» (c) 1, 3 and 4 |
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| 5. |
India has land under a variety of relief features. Which of the following features ensure perennial flow of some rivers, provide facilities for tourism and ecological aspects? A. Plains B. Plateaus C. Islands D. Mountains |
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Answer» Option(D)-Mountains (d) Mountains |
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| 6. |
Choose the correctly matched pair about the crops and the areas they are grown in : A. Groundnut- Assam B. Tea- Gujarat C. Coffee- Karnataka D. Sugarcane – Chhattisgarh |
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Answer» C. Coffee- Karnataka (c) Coffee- Karnataka |
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| 7. |
There are many sectors of the green economy that affect your daily life. Explain any one of them and what you can do to help a green economy. |
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Answer» Agriculture/ forestry/ energy resources/ construction /fishery / tourism / transport |
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| 8. |
In a business, raw materials, components, work in progress and finished goods are jointly regarded as (a) Capital stock (b) Inventory (c) Investment (d) Net worth |
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Answer» In a business, raw materials, components, work in progress and finished goods are jointly regarded as Inventory. |
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| 9. |
A rigid body is made of three identical thin rods, each of length L fastened together in the form of letter H. The body is free to rotate about a horizontal axis that runs along the length of one of the legs of the H. The body is allowed to fall from rest from a position in which the plane of H is horizontal. What is the angular speed of the body when the plane of H is vertical ? A. `sqrt(g/L)`B. `1/2sqrt(g/L)`C. `3/2sqrt(g/L)`D. `2sqrt(g/L)` |
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Answer» Correct Answer - C `I=0+(mL^(2))/3+mL^(2)=4/3mL^(2)` from energy conservation `1/2Iomega^(2)=0+"mg"L/2+"mgL"` `"So "omega=3/2sqrt("g"/L)` |
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| 10. |
What is the type of business that uses raw materials, parts and components to assemble finish goods. |
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Answer» manufacturing business |
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| 11. |
Three point charges `1C, 2C` and `3C` are placed at the corners of an equilaternal triangle of side `1m`. The work required to move these charges to the corners of a smaller equilaternal triangle of side `0.5 m` in two differenct ways as in fig. `(A)` and fig. `(B)` are `W_(a)` and `W_(b)` then: A. `W_(w) gt W_(b)`B. `W_(a) lt W_(b)`C. `W_(a)=W_(b)`D. `W_(a)=0` and `W_(b)=0` |
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Answer» Correct Answer - C Work done by external force `=DeltaU` [It is state function] |
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| 12. |
Consider a finite charged rod. Electric field at point P (shown) makes an angle `theta` with horizontal dotted line then angle `theta` is:- A. `60^(@)`B. `28^(@)`C. `44^(@)`D. information insufficient |
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Answer» Correct Answer - B Required angle`=(theta_(2)-theta_(1))/(2)=(88^(@)-32^(@))/(2)=56^(@)/2=28^(@)` |
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| 13. |
A Gausisan surface in the figure is shown by dotted line. The electric field on the surface will be A. due to `q_1` and q_2` onlyB. due to `q_2` onlyC. zeroD. due to all |
| Answer» The flux through the gaussian surface is due to the charges inside the gaussian surface but the electric field on the gaussian surface will be due to the charges present in the haussian surface and outside it. It wll be due to all the charges. | |
| 14. |
Two equal point charges are fixed at `x=-a` and `x=+a` on the x-axis. Another point charge Q is placed at the origin. The change in the electrical potential energy of Q, when it is displaced by a small distance x along the x-axis, is approximately proportional toA. `x`B. `x^2`C. `x^3`D. `1//x` |
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Answer» `U_(i)=((2Qq)/(4piepsilon_(0)(a))),U_(f)=(Qq)/(4piepsilon_(0))[(1)/(a+x)+(1)/(a-x)]` `U_(i)-U_(f)=((Qqx^(2)))/(2piepsilon_(0)^(3))` [for `xltlta,x^(2)` can be neglected in comparison to `a^(2)` in denominator] |
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| 15. |
For ground to ground projectile motion equation of path is `y=12x-3//4x^(2)`. Given that `g=10ms^(-2)`. What is the range of the projectile ?A. `36m`B. `30.6m`C. `16m`D. `12.4m` |
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Answer» Correct Answer - C `y=xtantheta(1-(x)/(R))y=(12x)(1-(x)/(16))` `rArr `Range `=16m Ans.` |
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| 16. |
The sketch below shows cross-sections of equipotential surface between two charged conductors that are shown in solid black. Some points one the euquipotential surface near the conductors are marked as A, B, C ………. The arrangement lies in air. `["Take " in_(0)=8.85xx10^(-12) C^(2)//N m^(2)]` How much work is required to slowly move a `-1 mu C` charge from E to D?A. `2xx10^(-5) J`B. `-2xx10^(-5) J`C. `4xx10^(-5) J`D. `-4xx10^(-5) J` |
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Answer» Correct Answer - D Here `V_(DE)=V_(D)-V_(E)=20-(-20)=40V` Work done`=qV_(DE)` `=-1xx10^(-6)xx40` `=-4xx10^(-5) J` |
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| 17. |
A man in a balloon throws a stone downwards with a speed of `5 m//s` with respect to balloon. The balloon is moving upwards with a constant acceleration of `5 m//s^2`. Then velocity of the stone relative to the man after `2` seconds is. |
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Answer» Correct Answer - D Relative velocity of stone `= 5 m//s` relative acceleration of stone `= 10 + 5 = 15 m//s_(2)` `:. v = u + at = 5 + 15 xx 2 = 35 m//s` `:.` relative velocity after `t =2` second is `35 m//s`. |
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| 18. |
A satellite can be in a geostationary orbit around a planet at a distance r from the centre of the planet. If the angular velocity of the planet about its axis doubles, a satellite can now be in a geostationary orbit around the planet if its distance from the centre of the planet is.(a) r/2 (b) r/2√2 (c) r/41/3 (d) r/21/3 |
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Answer» Correct Answer is: (c) r/41/3 Time period of rotation (T) and distance (r) are related as T2 ∝ r3. Also, when the angular velocity doubles, the time period becomes half. |
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| 19. |
An object O is placed in front of a small plane mirror M1 and a large convex mirror M2 of focal length f. The distance between O and M1 is x, and the distance between M1 and M2 is y. The images of O formed by M1 and M2 coincide. The magnitude of f is(a) x2 - y2/2y(b) x2 + y2/2y(c) x - y(d) x2 + y2/x - y |
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Answer» Correct Answer is: (a) x2 - y2/2y Due to M1, an image is formed at a distance x from M1, i.e., at a distance x - y behind M2. Thus, for M2, u = -(x + y), v = x - y. Use 1/v + 1/u = 1/f. |
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| 20. |
A bullet moving with a velocity u passes through a plank which is free to move. The two are of equal mass. After passing through the plank, the velocity of the bullet becomes fu. Its velocity relative to the plank now is (a) fu (b) (1 - f)u (c) (2f - 1)u (d) (2 - f)u |
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Answer» Correct Answer is: (c) (2f - 1)u Let v = the velocity of the plank after the impact. Using conservation of momentum, mu = mv + mfu or v = u(1 - f). ∴ the velocity of the bullet relative to the plank = fu - v. |
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| 21. |
The maximum value of `xy` subject to `x +y=8` is :A. 8B. 16C. 20D. 24 |
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Answer» Correct Answer - B `x+y=8` `A=xy` `A=x(8-x)` `A=8x-x_(2)` `(dA)/(dX)= 8-2x` `x =4` `y =4` `A= xy = 16`. |
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| 22. |
If `y = sin x l n(3x)` then `(dy)/(dx)` will be :A. `(3 cos x)/(x)`B. `(sin x)/(x)+(cos x)l n(3x)`C. `sin (x^(2))+cos x l n(3x)`D. `3 x sin x+3 xos x l n(x)` |
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Answer» Correct Answer - B `(dy)/(dx)=(sinx)/(x)+l n(3x)cos x`. |
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| 23. |
How many capital letters of English alphabet show lateral inversion in a plane mirror ? |
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Answer» Correct Answer - 15 `A B C D E F G H I J K L M N O P Q R S T U V W X Y Z` Capital letter shown in bold are symmetric All the capital letter which are not symmetric show lateral inversion so these are `26-11=15`. |
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| 24. |
`int_(pi//6)^(pi//3) sin(3x)dx=`A. `(1)/(3)`B. `-(1)/(3)`C. `1`D. `3` |
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Answer» Correct Answer - A `(-cos 3x)/(3):|_(pi//6)^(pi//3)=(1)/(3)(-1-0)=(1)/(3)`. |
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| 25. |
The displacement of a body is given by `r=sqrt(a^(2)-t^(2))+t cost^(2)` , where `t` is the time and a is constant. Its velosity is `:`A. `(-t)/(sqrt(a^(2)-t^(2)))+cos t^(2)-t sin 2t`B. `(-t)/(sqrt(a^(2)-t^(2)))+cos t^(2)-2t^(2) sin 2t^(2)`C. `(-a)/((a^(2)-t^(2)))+2 t cos t^(2) sin t+sin t`D. `a -t^(2)- t sin t^(2)` |
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Answer» Correct Answer - B `r= sqrt(a^(2)-t^(2))+t cos t_(2)` `V=(dr)/(dt)=(1)/(2)(a_(2)-t_(2))-1//2 (-2t)+t(-sin t_(2))2t_(1)+ cos t_(2)` `V=-(t)/(sqrt(a^(2)-t^(2)))-3 t_(2) sin t_(2) +cos t_(2)`. |
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| 26. |
The radius of curvature of a plane mirror of length `40 cm` is :A. 20 cmB. 40 cmC. zeroD. None |
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Answer» Correct Answer - D The radius of curvature of a plane mirror is infinite. |
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| 27. |
In the figure shown, the wedge is fixedand the masses are released from rest. The coefficient of friction between A and the incline is `mu_(1)` and B and the incline is `mu_(2)`. Then which of the following sentence is (are) correct (I) normal reaction between A and B can never be zero (II) normal reaction between A and B is zero only if `mu_(1) = mu_(2)` A. I onlyB. II onlyC. both I and IID. none |
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Answer» Correct Answer - D if `mu_(1) lt mu_(2)`, then also `N gt 0` |
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| 28. |
A block of mass m and length l is kept at rest on a rough horizontal ground of friction coefficient `mu_(k)`. A man of mass m is standing at the right end. Now the man starts walking towards left and reaches the left end within time ‘t’. During this time, the displacement of the block is : (Assume the pressing force between the block and the ground remains constant and its value is same as it was initially. Also as sume that the block slides during the entire time (t)) A. `(l-mu_(k) g t^(2))/2`B. `(l+mu_(k) g t^(2))/2`C. `(mu_(k) g t^(2)-l)/2`D. `l/2` |
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Answer» `(F_("net"))_("ext")=mu_(k)(2m)g=m_("total")a_(cm)` `a_(cm)=mu_(k)g` `S_(cm)=0+1/2(mu_(k)g)t^(2)` `S_(cm)=(m_(1)S_(1)+m_(2)S_(2))/(m_(1)+m_(2))` `-1/2 (mu_(k)g)t^(2)=((m)(x)+(m)(x-l))/(m+m)` `x=(l-(mu_(k)g)t^(2))/2` |
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| 29. |
In each situation of column -I a uniform disc of mass m and radius R rolls on a rough fixed horizontal surface as shown At `t=0` (initially)the angular velocity of disc is omega_(0) and velocity of centre of mass of disc is v_(0) (in horizontal direction). The relation between v_(0) and `omega_(0)` and the initial sense of rotation is given for each situation in column-I then match the statement in column-I with the corresponding results in column-II. |
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Answer» Correct Answer - [(A)PQR(B)PQR(C)PQ(D)PQR] (P) Torque due to friction in zero about A so that angular momentum will be conserved in all cases and also direction of friction depends on relation between `v_(0)` and `omega_(0)R` and among `v_(0)` and `omega_(0)R` which will become zero first |
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| 30. |
A square coil of 10 cm side and with 100 turns is rotated at a uniform speed of 500 rpm about an axis at right angle to a uniform field of 0.5 Wb/m2 . Calculate the instantaneous value of induced e.m.f. when the plane of the coil is (i) at right angle to the plane of the field. (ii) in the plane of the field. (iii) at 45º with the field direction. |
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Answer» As seen from , e.m.f. induced in the coil would be zero when its plane is at right angles to the plane of the field, even though it will have maximum flux linked with it. However, the coil will have maximum e.m.f. induced in it when its plane lies parallel to the plane of the field even though it will have minimum flux linked with it. In general, the value of the induced e.m.f. is given by e = ωNΦm sinθ = Em sinθ where θ is the angle between the axis of zero e.m.f. and the plane of the coil. Here, f = 500/ 60 = 25/ 3 r.p.s ; N = 100 ; B = 0.5 Wb/ m2 ; A = (10 × 10) × 10−4 = 10−2 m2 . ∴ Em = 2π f NBA = 2π (25/3) × 100 × 0.5 × 10−2 = 26.2 V (i) since θ = 0 ; sin θ = 0 ; therefore, e = 0. (ii) Here, θ = 90° ; e = Em sin 90º = 26.2 × 1 = 26.2 V (iii) sin 45º = 1/√2 ; e = 26.2 × 1/√2 = 18.5 V |
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| 31. |
A wave front is formed as results of |
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Answer» A wave front is defined as a surface over which the phase of the wave is constant. In a particular wave front, at a given moment of time, all particles of the medium are undergoing the same motion. Two types of wave fronts are particularly important. They are plane wave fronts and spherical wave fronts. |
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| 32. |
Answer the following questions: (a) Why does a paramagnetic sample display greater magnetisation (for the same magnetising field) when cooled?(b) Why is diamagnetism, in contrast, almost independent of temperature?(c) If a toroid uses bismuth for its core, will the field in the core be (slightly) greater or (slightly) less than when the core is empty?(d) Is the permeability of a ferromagnetic material independent of the magnetic field? If not, is it more for lower or higher fields?(e) Magnetic field lines are always nearly normal to the surface of a ferromagnet at every point. (This fact is analogous to the static electric field lines being normal to the surface of a conductor at every point.) Why?(f) Would the maximum possible magnetisation of a paramagnetic sample be of the same order of magnitude as the magnetization of a ferromagnet? |
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Answer» (a) Owing to the random thermal motion of molecules, the alignments of dipoles get disrupted at high temperatures. On cooling, this disruption is reduced. Hence, a paramagnetic sample displays greater magnetisation when cooled. (f) The maximum possible magnetisation of a paramagnetic sample can be of the same order of magnitude as the magnetisation of a ferromagnet. This requires high magnetising fields for saturation. |
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| 33. |
Answer the following questions:(a) Why does a paramagnetic sample display greater magnetisation (for the same magnetising field) when cooled?(b) Why is diamagnetism, in contrast, almost independent of temperature?(c) If a toroid uses bismuth for its core, will the field in the core be (slightly) greater or (slightly) less than when the core is empty?(d) Is the permeability of a ferromagnetic material independent of the magnetic field? If not, is it more for lower or higher fields?(e) Magnetic field lines are always nearly normal to the surface of a ferromagnet at every point. (This fact is analogous to the static electric field lines being normal to the surface of a conductor at every point.) Why?(f) Would the maximum possible magnetisation of a paramagnetic sample be of the same order of magnitude as the magnetization of a ferromagnet? |
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Answer» (a) Owing to the random thermal motion of molecules, the alignments of dipoles get disrupted at high temperatures. On cooling, this disruption is reduced. Hence, a paramagnetic sample displays greater magnetisation when cooled. (f) The maximum possible magnetisation of a paramagnetic sample can be of the same |
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| 34. |
What is the main objective of setting accounting standards ? Or What is meant by Accounting Standards ? Explain one objective of Accounting |
| Answer» Accounting Standards are the guidelines for the preparation and presentation of Financial Statemanets . The objective of setting Accounting Standards is to bring uniformity in accounting practices and to ensure transparency , consistency and comparability . | |
| 35. |
A set of written instructions that document a routine or repetitive activity followed by an organization is called a_____ |
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Answer» A set of written instructions that document a routine or repetitive activity followed by an organization is called a Standard operating procedure. |
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| 36. |
Brifly explain your understanding of IFRS. |
| Answer» IFRS are the accounting standards issued by the IASB , recommended to be used by the enterprises globally to produce financial statement following a single aet of accounting standards . IFRS are principle based accounting standards in comparison to rule based Indian Accounting Standards , Also they are based on fair value concept. | |
| 37. |
What refers to the area of a store where customers can pay for their purchases? |
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Answer» Point of Sale Point of Sale refers to the area of a store where customers can pay for their purchases. |
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| 38. |
Rectifying entries are passed to make correction of errors in … accounting.(a) Single entry (b) Opening entry(c) Rectifying entry (d) Closing entry |
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Answer» (c) Rectifying entry |
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| 39. |
……. is a negotiable instrument. (a) Pay – in – slip (b) Cheque (c) Voucher (d) Invoice |
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Answer» The correct answer is : (b) Cheque |
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| 40. |
What is the difference between Cash Profit and Net Profit? |
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Answer» Profit may also be referred to as net income, and can be defined as revenue less expenses. Cash flow, on the other hand, refers to the money coming in and the money going out for a particular business. It is more complicated than income. net profit means money left after paying all expenses .here all expense means cash expenses and non cash expenses also , when we calculate net profit we consider depreciation , this dep. is non cash item which is not spend in cash .but cash profit means money left after paying all cash expenses . in this profit we never consider non cash item , thanks |
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| 41. |
Can the excess payment, if any, credited to the pensioner’s account be recovered by the bank? |
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Answer» Before commencing payment of pension, the paying branch is required to obtain an undertaking in the prescribed form Annexure-XI of the Scheme from the pensioner. On the strength of this undertaking the excess payment, if any, credited to his/her account can be recovered by the paying branch. |
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| 42. |
Which of the following agents is an alfa1-selective agonist? a) Norepinephrine b) Methoxamine c) Ritodrine d) Ephedrine |
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Answer» Methoxamine agents is an alfa1-selective agonist. |
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| 43. |
…… motivates the debtor to make the payment at an earlier date to avail discount facility. (a) Trade discount (b) Cash discount (c) Sales (d) Purchases |
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Answer» (b) Cash discount |
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| 44. |
Tom is from Berlin. His nationality is ______. A) Germany B) German C) Dutch |
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Answer» Correct option is B) German |
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| 45. |
She lives in Argentina. She speaks ______. A) Argentinian B) Spanish C) Portuguese |
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Answer» Correct option is A) Argentinian |
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| 46. |
Is the payment of pension in cash or through a joint account with or without "EITHER or SURVIVOR" facility permitted in the Scheme for Payment of Pension to Central Government Civil Pensioners by Public Sector Banks? |
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Answer» Payment of pension in cash is not permitted in the scheme. However, the pension payment is now permitted to be credited to a joint account operated by the pensioner with his/her spouse (either by ‘Former or Survivor’ or ‘Either or Survivor’ basis) in whose favour an authorization exists in the Pension Payment Order, subject to certain terms and conditions. Paying branch may also credit the amount of pension in his or her joint account operated by pensioner with his/her spouse in whose favour an authorization for family pension exists in the Pension Payment Order (PPO). The joint account of the pensioners with the spouse could be operated either by 'Former or Survivor' or 'Either or Survivor' basis subject to the following conditions :- (a) Once pension has been credited to a pensioner's bank account, the liability of the Government/Bank ceases. No further liability arises, even if the spouse wrongly draws from the account. (b) As pension is payable only during the life of a pensioner, his/her death shall be intimated to the bank at the earliest and in any case within one month of the demise, so that the bank does not continue crediting monthly pension to the joint account with the spouse, after the death of the pensioner. If however, any amount has been wrongly credited to the joint account, it shall be recoverable from the joint account and/or any other account held by the pensioners/spouse either individually or jointly. The legal heirs, successors, executors etc. shall also be liable to refund any amount, which has been wrongly credited to the joint account. (c) Payment of Arrears of Pension (Nomination) Rules 1983 would continue to be applicable to a joint account with Pensioner's spouse. This implies that if there is an 'accepted nomination' in accordance with Rules 5 and 6 of these Rules, arrears mentioned in the Rules shall be payable to the nominee. Existing pensioners desiring to get their pension credited to a joint account as indicated above are required to submit an application to the branch bank, from where they are presently drawing pension in the prescribed form that is i.e. Annexure XXIX of Scheme Booklet of Central Pension Accounting Office (CPAO). This would also be signed by the pensioner's spouse |
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| 47. |
He’s from Germany. He is ______. A) German B) Germany C) Dutch |
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Answer» Correct option is A) German |
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| 48. |
He’s interested _____ flying. A) at B) in C) on D) with |
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Answer» Correct option is B) in |
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| 49. |
Report on ‘A Boat Tragedy’ – Report by a survivor. |
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Answer» A Report on a Boat Tragedy Kota, July 10 |
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| 50. |
He’s not ________ of learning German in six months. A) possible B) interested C) inclined D) able E) capable |
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Answer» Correct option is E) capable |
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