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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 451. |
Why current value is always less than voltage? |
| Answer» Why current value is always less than voltage? | |
| 452. |
In a circuit ,L,C and R are connected in series with an alternating voltage source of frequency f . The curent leads the voltage by 45^{0 }. The value of C is |
| Answer» In a circuit ,L,C and R are connected in series with an alternating voltage source of frequency f . The curent leads the voltage by 45^{0 }. The value of C is | |
| 453. |
if momentom increases by 50% then by what % its kinetic energy will change ? & in previous ques. now if momentum increases by 20% then by what % its kinetic enegy will change anf find out the ratio of the kinetic enegy of both cases |
| Answer» if momentom increases by 50% then by what % its kinetic energy will change ? & in previous ques. now if momentum increases by 20% then by what % its kinetic enegy will change anf find out the ratio of the kinetic enegy of both cases | |
| 454. |
What is the maximum percentage error in density of a body if percentage error in measurement of mass is 4% and percentage error in measurement of side is 5%? 1-18% 2-19% 3-20% 4-11% |
| Answer» What is the maximum percentage error in density of a body if percentage error in measurement of mass is 4% and percentage error in measurement of side is 5%? 1-18% 2-19% 3-20% 4-11% | |
| 455. |
If a small sphere of mass m and charge q is hung from a silk thread at an angle with the surface of avertical charged conducting plate, then for equilibrium of sphere, the surface charge density of the plate is |
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Answer» If a small sphere of mass m and charge q is hung from a silk thread at an angle with the surface of a vertical charged conducting plate, then for equilibrium of sphere, the surface charge density of the plate is |
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| 456. |
Assertion (A) : Density of ice is less than water.Reason (R) : Density of ice is maximum at 4 C.Now, choose the correct option.(1) Both (A) and (R) are true and (R) is the correct explanation of (A)(2) Both (A) and (R) are true but (R) is not the correct explanation of (A)(3) (A) is true but (R) is false4) (A) is false and (R) is true |
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Answer» Assertion (A) : Density of ice is less than water. Reason (R) : Density of ice is maximum at 4 C. Now, choose the correct option. (1) Both (A) and (R) are true and (R) is the correct explanation of (A) (2) Both (A) and (R) are true but (R) is not the correct explanation of (A) (3) (A) is true but (R) is false 4) (A) is false and (R) is true |
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| 457. |
Anil's father has three different wires which vary in lengths.J: 12 cmK: 2.8 mL: 203 mmWhich of the following options shows the arrangement of the wires from the longest to the shortest? |
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Answer» Anil's father has three different wires which vary in lengths. |
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| 458. |
20. Find total phase at t=7.5s if displacement at t=0 is 5cm. |
| Answer» 20. Find total phase at t=7.5s if displacement at t=0 is 5cm. | |
| 459. |
The volumes of two cylinders are a : b and their heights are c :d. The ratio of their diameters . |
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Answer» The volumes of two cylinders are a : b and their heights are c :d. The ratio of their diameters |
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| 460. |
In the circuits A, B, C and D, with switch S open, the lamps Q and R would light up but not lamp P in:(1) circuit A(2) circuit B(3) circuit C(4) circuit D |
Answer» In the circuits A, B, C and D, with switch S open, the lamps Q and R would light up but not lamp P in: (1) circuit A (2) circuit B (3) circuit C (4) circuit D |
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| 461. |
A person travels a distance of 5 m towards north-east, thenturns south and travels 3 m. What is his total displacement? |
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Answer» A person travels a distance of 5 m towards north-east, then turns south and travels 3 m. What is his total displacement? |
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| 462. |
Two plane mirrors are arranged parallel to one another each moving with a speed u as shown in figure. The linear velocity of the Nth image formed by mirror, of a point object (w.r.t object), considering the first reflection takes place at mirror 1 is : |
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Answer» Two plane mirrors are arranged parallel to one another each moving with a speed u as shown in figure. The linear velocity of the Nth image formed by mirror, of a point object (w.r.t object), considering the first reflection takes place at mirror 1 is : |
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| 463. |
87.What exactly is electric potential And potential difference |
| Answer» 87.What exactly is electric potential And potential difference | |
| 464. |
The range of wavelength of the electromagnetic radiation visible to us is |
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Answer» The range of wavelength of the electromagnetic radiation visible to us is |
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| 465. |
111. two point charges placed at a distance R in air exert a force of F on Each Other this two charges when placed in a medium of dielectric constant K equals to 16 experiences a force of 4F then distance between them in medium would be |
| Answer» 111. two point charges placed at a distance R in air exert a force of F on Each Other this two charges when placed in a medium of dielectric constant K equals to 16 experiences a force of 4F then distance between them in medium would be | |
| 466. |
Match the following. Group ‘A’ Group ‘B’ (a) Melting point 1. Thermometer (b) Boiling point 2. Specific heat (c) Mercury 3. Change from solid to liquid (d) Calorimeter 4. Change from liquid to gas 5. Unit of heat |
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Answer» Match the following.
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| 467. |
how will area be affected if wire is dobled by folding explain briefly |
| Answer» how will area be affected if wire is dobled by folding explain briefly | |
| 468. |
In given figure, ABCD is a rhombus. If ∠ OAB=40∘,then find the value of x. |
Answer» In given figure, ABCD is a rhombus. If ∠ OAB=40∘,then find the value of x. |
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| 469. |
What is the speed of the sound in the vacuum? |
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Answer» What is the speed of the sound in the vacuum? |
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| 470. |
A person moves 30m north, then 20m east and then 30\sqrt2m south west. His displacement from origin position is 1. 14m south west 2. 28m south 3. 10m west 4. 15m eas |
| Answer» A person moves 30m north, then 20m east and then 30\sqrt2m south west. His displacement from origin position is 1. 14m south west 2. 28m south 3. 10m west 4. 15m eas | |
| 471. |
How can a balanced force change the shape and size of an object as it cannot bring any change in the state of rest or uniform motion on a straight line? |
| Answer» How can a balanced force change the shape and size of an object as it cannot bring any change in the state of rest or uniform motion on a straight line? | |
| 472. |
The spectrum of sunlight consists of ___ prominent colours. |
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Answer» The spectrum of sunlight consists of |
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| 473. |
what is steady state in l r circuit |
| Answer» what is steady state in l r circuit | |
| 474. |
A body travels 200 cm in the first two seconds and 220 cm in the next four seconds. The average speed of the body will be |
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Answer» A body travels 200 cm in the first two seconds and 220 cm in the next four seconds. The average speed of the body will be |
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| 475. |
127. If an object lying on the equator feels the state of weightlessness, then the duration of one day will be 1) 2.4 hr 2) 1. 4 hr 3) 3.4 hr 4) 4.4 hr |
| Answer» 127. If an object lying on the equator feels the state of weightlessness, then the duration of one day will be 1) 2.4 hr 2) 1. 4 hr 3) 3.4 hr 4) 4.4 hr | |
| 476. |
In a marathon, runner A covers 25 km in 2 hours and runner B covers 35 km in 3 hours. The difference in their speeds is |
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Answer» In a marathon, runner A covers 25 km in 2 hours and runner B covers 35 km in 3 hours. The difference in their speeds is |
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| 477. |
A researcher is studying the relationship between speed of cycling and the presence of people. Formulate a relevant hypothesis and identify the independent and dependent variables. |
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Answer» A
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| 478. |
what is n_{12} |
| Answer» what is n_{12} | |
| 479. |
The ratio of specific heats Cp/Cv=y in terms of degree of freedom( n) is given by |
| Answer» The ratio of specific heats Cp/Cv=y in terms of degree of freedom( n) is given by | |
| 480. |
What is short circuit current in a solar cell and how current is possible when potential difference is zero in that case? |
| Answer» What is short circuit current in a solar cell and how current is possible when potential difference is zero in that case? | |
| 481. |
How atoms is divided and how it can be further identified...??? |
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Answer» How atoms is divided and how it can be further identified...??? |
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| 482. |
Consider two hot bodies B1 and B2. which have temperatures 100∘C and 80∘C respectively at t = 0 .The temperature of the surroundings is 40∘C. The ratio of the respective rates of cooling R1 and R2 of these two bodies at t = 0 will be |
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Answer» Consider two hot bodies B1 and B2. which have temperatures 100∘C and 80∘C respectively at t = 0 .The temperature of the surroundings is 40∘C. The ratio of the respective rates of cooling R1 and R2 of these two bodies at t = 0 will be |
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| 483. |
Answer the following: Why does nose bleeding occur at high altitudes? A water bottle is resting on its base on a table. It is now flipped and placed upside down. How does this vary the thrust and pressure acting on the table? |
Answer» Answer the following:
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| 484. |
What precautions should be taken during storms? |
| Answer» What precautions should be taken during storms? | |
| 485. |
What is a sundial? How does it work? [2 MARKS] |
| Answer» What is a sundial? How does it work? [2 MARKS] | |
| 486. |
a particle moving in a straight line covers ohalf of the dis†an ce with speed 3m/s . the other half of the dis†an ce is covered in two equal time intervals and with speeds of 4.5m/s and 7.5m/s respectively the average speed of the particl |
| Answer» a particle moving in a straight line covers ohalf of the dis†an ce with speed 3m/s . the other half of the dis†an ce is covered in two equal time intervals and with speeds of 4.5m/s and 7.5m/s respectively the average speed of the particl | |
| 487. |
14.Two immiscible liquid having densities p1 & p2 are filled in a vessel. A body of density p and volume V floats at the interface of two liquid with volume V1 in the liquid of density p1.Volume of the body present in liquid of density p2 will be |
| Answer» 14.Two immiscible liquid having densities p1 & p2 are filled in a vessel. A body of density p and volume V floats at the interface of two liquid with volume V1 in the liquid of density p1.Volume of the body present in liquid of density p2 will be | |
| 488. |
Fill in the blanks. (a) A flautist can place fingers on the proper holes and produce vibrations of ………… . (b) Sound is heard more clearly ………… as compared to air. (c) In drums, ………… vibrates to produce sound. (d) The speed of light is ………… times that of sound. (e) When temperature increases the speed of sound ………… . |
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Answer» Fill in the blanks. (a) A flautist can place fingers on the proper holes and produce vibrations of ………… . (b) Sound is heard more clearly ………… as compared to air. (c) In drums, ………… vibrates to produce sound. (d) The speed of light is ………… times that of sound. (e) When temperature increases the speed of sound ………… . |
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| 489. |
The handle of the pressure cooker and nonstick vessels are made of substances like bakelite. Why? |
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Answer» The handle of the pressure cooker and nonstick vessels are made of substances like bakelite. Why? |
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| 490. |
Why does light bend around the very small corners and not around the usual size ones? |
| Answer» Why does light bend around the very small corners and not around the usual size ones? | |
| 491. |
Which of the following does not describe the TRAPPIST-1? |
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Answer» Which of the following does not describe the TRAPPIST-1? |
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| 492. |
Question 21Observe the following circuit given in figure.Current does not flow in the circuit if there is a gap between the two wires. Does it indicate that air is a poor conductor of electricity? Does air never conduct electricity? Explain. |
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Answer» Question 21 Observe the following circuit given in figure.  Current does not flow in the circuit if there is a gap between the two wires. Does it indicate that air is a poor conductor of electricity? Does air never conduct electricity? Explain. |
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| 493. |
Draw a circuit diagram using the symbols for an electric cell, key, electric bulb and conducting wires. |
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Answer» Draw a circuit diagram using the symbols for an electric cell, key, electric bulb and conducting wires. |
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| 494. |
38.The outer faces of a rectangular slabe made of equal thickness of iron and brass are maintained at 100 degree C and 0 degree C respectively.The temperature at the interface is(thermal conductivity of iron and brass are 0.2 and 0.3 respectively) 100,40,50,70 |
| Answer» 38.The outer faces of a rectangular slabe made of equal thickness of iron and brass are maintained at 100 degree C and 0 degree C respectively.The temperature at the interface is(thermal conductivity of iron and brass are 0.2 and 0.3 respectively) 100,40,50,70 | |
| 495. |
(dust, atmosphere, mixture, motion, dissolved, oxygen).1. Air is not one substance but a .2. When air is in it is called wind.3. Our earth is surrounded by 4. The aquatic animals use oxygen in the water for respiration.5. Air contains particles.6. The component of air that supports burning is called |
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Answer» (dust, atmosphere, mixture, motion, dissolved, oxygen). 1. Air is not one substance but a 2. When air is in 3. Our earth is surrounded by 4. The aquatic animals use 5. Air contains 6. The component of air that supports burning is called |
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| 496. |
If a car is moving in the same direction and with speed as you, then what can you say about the motion of the car? |
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Answer» If a car is moving in the same direction and with speed as you, then what can you say about the motion of the car? |
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| 497. |
Which of the following particle is responsible for the electric current in a wire? |
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Answer» Which of the following particle is responsible for the electric current in a wire? |
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| 498. |
A rubber sucker, when pressed on a surface sticks to it, because: |
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Answer» A rubber sucker, when pressed on a surface sticks to it, because: |
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| 499. |
We cannot conveniently measure our body temperature using a laboratory thermometer mainly because: |
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Answer» We cannot conveniently measure our body temperature using a laboratory thermometer mainly because: |
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| 500. |
A prestressed concrete rectangular beam has area of cross-seciton equal to 36000mm2 and moment of inertia of 2.7×108mm4. A prestressing force of 195 kN is applied by tendons at an eccentricity of 55 mm from neutral axis.The loss of stress in steel due to creep of concrete is ____ N/mm2.[Take Es=2×105N/mm2,EC=3×105 N/mm2 and creep coefficient = 1.50]76 |
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Answer» A prestressed concrete rectangular beam has area of cross-seciton equal to 36000mm2 and moment of inertia of 2.7×108mm4. A prestressing force of 195 kN is applied by tendons at an eccentricity of 55 mm from neutral axis. The loss of stress in steel due to creep of concrete is ____ N/mm2. [Take Es=2×105N/mm2,EC=3×105 N/mm2 and creep coefficient = 1.50]
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