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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. |
36. A body is dropped from a tower. It covers 64% distance of its total length in last second. Find the height of the tower |
| Answer» 36. A body is dropped from a tower. It covers 64% distance of its total length in last second. Find the height of the tower | |
| 2. |
Find the cube root of the result obtained when you subtract x^3 from 4097x^3. |
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Answer» Find the cube root of the result obtained when you subtract x^3 from 4097x^3. |
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| 3. |
Find the number of images formed by plane mirrors kept at an angle of 60∘. |
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Answer» Find the number of images formed by plane mirrors kept at an angle of 60∘. |
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| 4. |
Fill in the blanks. (a) There are altogether ………… constellations. Of these, 37 belong to the northern sky and ………… to the southern sky. (b) Jupiter has ………… moons. (c) ………… was India’s first artificial satellite. (d) It is because of ………… that we can forecast the weather. |
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Answer» Fill in the blanks. (a) There are altogether ………… constellations. Of these, 37 belong to the northern sky and ………… to the southern sky. (b) Jupiter has ………… moons. (c) ………… was India’s first artificial satellite. (d) It is because of ………… that we can forecast the weather. |
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| 5. |
A particle moves in a circle of radius 4 m clockwise at constant speed of 2 m/s. If i and j are unit vectors along x and y directions respectively, theacceleration of particle at the instant half way between P and Q is |
| Answer» A particle moves in a circle of radius 4 m clockwise at constant speed of 2 m/s. If i and j are unit vectors along x and y directions respectively, theacceleration of particle at the instant half way between P and Q is | |
| 6. |
1 hour after 1 PM in 24-hour format is: |
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Answer» 1 hour after 1 PM in 24-hour format is: |
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| 7. |
two point charges +q and -q are placed a dis†an ce x apart.A third charge is so placed that all the three charges are in equilibrium.then find the unknown charge |
| Answer» two point charges +q and -q are placed a dis†an ce x apart.A third charge is so placed that all the three charges are in equilibrium.then find the unknown charge | |
| 8. |
two spherical bodies of masses m and 4m and radii R and 2R respectively are released in free space with initial separation between their centres =15R.if they attract each other due to gravitational force only,then the distance covered by smaller sphere just before collision will be |
| Answer» two spherical bodies of masses m and 4m and radii R and 2R respectively are released in free space with initial separation between their centres =15R.if they attract each other due to gravitational force only,then the distance covered by smaller sphere just before collision will be | |
| 9. |
What is the working principle of water heater, iron box, and electric kettle ? In other words how is heat generated in these device ? |
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Answer» What is the working principle of water heater, iron box, and electric kettle ? In other words how is heat generated in these device ? |
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| 10. |
A meteor bursts when it enters the earth atmosphere. This is due to the fact that: |
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Answer» A meteor bursts when it enters the earth atmosphere. This is due to the fact that: |
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| 11. |
What makes the steps of foot over-bridges at Railway Stations to wear out slowly ? |
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Answer» What makes the steps of foot over-bridges at Railway Stations to wear out slowly ? |
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| 12. |
A car moves 2km due West , then , 1km due East and then again while falling , 1km due West . What is its Displacement? |
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Answer» A car moves 2km due West , then , 1km due East and then again while falling , 1km due West . What is its Displacement? |
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| 13. |
A diwali rocket is ejecting 50gram of gases at velocity 400meter per sec the acceleration force on rocket is? |
| Answer» A diwali rocket is ejecting 50gram of gases at velocity 400meter per sec the acceleration force on rocket is? | |
| 14. |
If a fish views outside from a depth h inside water of refractive index n, then the diameter of the circle through which the outer objects become visible, will be how much? |
| Answer» If a fish views outside from a depth h inside water of refractive index n, then the diameter of the circle through which the outer objects become visible, will be how much? | |
| 15. |
shell held surprised curly clear |
| Answer» shell held surprised curly clear | |
| 16. |
Generally, the range of clinical thermometer is: |
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Answer» Generally, the range of clinical thermometer is: |
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| 17. |
Two scooters starting from rest accelerate uniformly at the same rate. The second travels for twice the time of the first. Then the relation between the distance covered by the first scooter (s1) to that of the second scooter (s2) is |
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Answer» Two scooters starting from rest accelerate uniformly at the same rate. The second travels for twice the time of the first. Then the relation between the distance covered by the first scooter (s1) to that of the second scooter (s2) is |
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| 18. |
An inductor and resistor in series are connected to an AC supply of variable frequency as the frequency of source is increased the phase angle between current and potential difference across source will be |
| Answer» An inductor and resistor in series are connected to an AC supply of variable frequency as the frequency of source is increased the phase angle between current and potential difference across source will be | |
| 19. |
A whistle of frequency 500Hz tied to the endnof string of length 1.2m revolves at 40m/s. A listener standing large distsnce away in the plane of rotatiorotation of whistle hears frequency of what range |
| Answer» A whistle of frequency 500Hz tied to the endnof string of length 1.2m revolves at 40m/s. A listener standing large distsnce away in the plane of rotatiorotation of whistle hears frequency of what range | |
| 20. |
The instrument that measures the wind speed in a cyclone is: |
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Answer» The instrument that measures the wind speed in a cyclone is: |
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| 21. |
When an electric current is passed through a cut potato for a considerable time, a coloured spot is formed around one of the electrodes : (a) What is the colour of the spot? (b) Around which electrode (positive or negative electrode) the coloured spot is formed? (c) Which effect of electric current is involved in this case? |
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Answer» When an electric current is passed through a cut potato for a considerable time, a coloured spot is formed around one of the electrodes : |
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| 22. |
The eye can detect 5×104 photons per square meter per second of green light (λ=5000 ˚A) while the ear can detect sound of intensity 10−13 Wm−2. Find the factor by which the eye is more sensitive as a power detector than the ear- |
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Answer» The eye can detect 5×104 photons per square meter per second of green light (λ=5000 ˚A) while the ear can detect sound of intensity 10−13 Wm−2. Find the factor by which the eye is more sensitive as a power detector than the ear- |
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| 23. |
Two fuels A and B are burnt.For both A and B we cannot use water to stop fire. Which among the following can be probably A and B. |
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Answer» Two fuels A and B are burnt.For both A and B we cannot use water to stop fire. Which among the following can be probably A and B. |
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| 24. |
The odd one out of these is: Veena, Flute, Sitar, Guitar |
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Answer» The odd one out of these is: Veena, Flute, Sitar, Guitar |
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| 25. |
Figure shows three equipotential surfaces in the surrounding of a point charge q. If t1 and t2 be the distance between them then |
| Answer» Figure shows three equipotential surfaces in the surrounding of a point charge q. If t1 and t2 be the distance between them then | |
| 26. |
Sheela, Saima and Ravi have to dissolve maximum amount of sugar in the same amount of milk so as to win in a game. Ravi took hot boiling milk while Saima took ice cold milk. Sheela managed to get milk at room temperature. Whom do you think would win the game and why? |
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Answer» Sheela, Saima and Ravi have to dissolve maximum amount of sugar in the same amount of milk so as to win in a game. Ravi took hot boiling milk while Saima took ice cold milk. Sheela managed to get milk at room temperature. Whom do you think would win the game and why? |
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| 27. |
State two differences between electrostatic force and magnetic force. |
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Answer» State two differences between electrostatic force and magnetic force.
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| 28. |
Name the constellation which appears to have the shape of: (a) a big bear (b) a distorted W or M (c) a hunter (d) a big lion |
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Answer» Name the constellation which appears to have the shape of: (a) a big bear (b) a distorted W or M (c) a hunter (d) a big lion |
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| 29. |
In the given figure AD=2 cm, DB=5cm AC=21 cm and DE ll BC.Find AE =? |
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Answer» In the given figure AD=2 cm, DB=5cm AC=21 cm and DE ll BC.Find AE =? |
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| 30. |
nt60 ml of mixture of CO and H2 were mixed with 40 ml of oxygen.Mixture was exploded and afer cooling it the volume was found to be 30 ml.Find the volume of CO and H2n nt(if all the volume is measured at STP)n |
| Answer» nt60 ml of mixture of CO and H2 were mixed with 40 ml of oxygen.Mixture was exploded and afer cooling it the volume was found to be 30 ml.Find the volume of CO and H2n nt(if all the volume is measured at STP)n | |
| 31. |
If two identical spheres having charge 16 micro coulomb and -8 micro coulomb are kept at certain distance apart then the force is F they are touched and again kept at the same distance the force becomes |
| Answer» If two identical spheres having charge 16 micro coulomb and -8 micro coulomb are kept at certain distance apart then the force is F they are touched and again kept at the same distance the force becomes | |
| 32. |
In a game of tug - of - war between two teams X and Y, the rope broke at a point which is nearer to X. Which of the following is correct in this regard? |
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Answer» In a game of tug - of - war between two teams X and Y, the rope broke at a point which is nearer to X. Which of the following is correct in this regard? |
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| 33. |
The density of a substance can be calculated using the formula:- DENSITY= MASS/VOLUME Mary's teacher told her that the mass of the 25 ml of water is 25g and the mass of 25 ml of ethanol is 19.75g . What is the correct value for the density of the mixture in g/ml? Select from the following options with explanation:- A) 0.79 B) 0.89 C) 0.93 D) 1.79 |
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Answer» The density of a substance can be calculated using the formula:- DENSITY= MASS/VOLUME Mary's teacher told her that the mass of the 25 ml of water is 25g and the mass of 25 ml of ethanol is 19.75g . What is the correct value for the density of the mixture in g/ml? Select from the following options with explanation:- A) 0.79 B) 0.89 C) 0.93 D) 1.79 |
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| 34. |
34. A car weights 1800 kg. The distance between it's front and back axles is 1.8 m. It's centre of gravity is 1.05 m behind the front axle. Determine the force exerted by the level ground on each front wheel and back wheel. |
| Answer» 34. A car weights 1800 kg. The distance between it's front and back axles is 1.8 m. It's centre of gravity is 1.05 m behind the front axle. Determine the force exerted by the level ground on each front wheel and back wheel. | |
| 35. |
How a polishing (highly) a surface increases friction? |
| Answer» How a polishing (highly) a surface increases friction? | |
| 36. |
the needle of a deflection magnetometer shows a deflection of 30 degree due to a short bar magnet at a certain dis†an ce in †an A position . if the dis†an ce is made half then the deflection will be |
| Answer» the needle of a deflection magnetometer shows a deflection of 30 degree due to a short bar magnet at a certain dis†an ce in †an A position . if the dis†an ce is made half then the deflection will be | |
| 37. |
A human eye consists of a ___ lens to form ___ images. |
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Answer» A human eye consists of a ___ lens to form ___ images. |
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| 38. |
When some electrons are removed from an uncharged body, it |
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Answer» When some electrons are removed from an uncharged body, it |
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| 39. |
22 justify that one of the function of series LCR resonant circuit is voltage magnification. |
| Answer» 22 justify that one of the function of series LCR resonant circuit is voltage magnification. | |
| 40. |
What is the temperature reading (in ℃) on the thermometer shown in the figure? 37.1 |
Answer» What is the temperature reading (in ℃) on the thermometer shown in the figure? 
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| 41. |
A light pipe is made of glass fibre of refractive index 1.57 the outer covering of the pipe is made of a material of refractive index 1.36 the range of angles of incident rays with the axis of the pipe for which total internal reflection inside the pipe take place is nearly1. 0 degree < i < 38 degree 2. 0 degree < i < 90 degree 3. 0 degree < i < 60 degree 4. 0 degree < i < 53 degree |
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Answer» A light pipe is made of glass fibre of refractive index 1.57 the outer covering of the pipe is made of a material of refractive index 1.36 the range of angles of incident rays with the axis of the pipe for which total internal reflection inside the pipe take place is nearly 1. 0 degree < i < 38 degree 2. 0 degree < i < 90 degree 3. 0 degree < i < 60 degree 4. 0 degree < i < 53 degree |
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| 42. |
The make unniyappam, 1 kilogram rice, 250 grams banana and 750 grams jaggery were mixed. What is the ratio of the ingredients? |
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Answer» The make unniyappam, 1 kilogram rice, 250 grams banana and 750 grams jaggery were mixed. What is the ratio of the ingredients? |
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| 43. |
Pair the images with their equal halves. |
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Answer» Pair the images with their equal halves. |
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| 44. |
When an electric current flows, what is the direction of motion of electrons? |
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Answer» When an electric current flows, what is the direction of motion of electrons? |
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| 45. |
A solid sphere and disc of same mass and radii are allowed to roll down a rough inclined plane from the top of a plane . The ratio of their times taken to reach the bottom of the inclined plane is? |
| Answer» A solid sphere and disc of same mass and radii are allowed to roll down a rough inclined plane from the top of a plane . The ratio of their times taken to reach the bottom of the inclined plane is? | |
| 46. |
What is the normal temperature of human body? |
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Answer» What is the normal temperature of human body? |
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| 47. |
The speed of sound in a mixture of 1 mole of helium and two moles of oxygen at 27^° C i |
| Answer» The speed of sound in a mixture of 1 mole of helium and two moles of oxygen at 27^° C i | |
| 48. |
Name the agency responsible for the development of space science programmes in India. |
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Answer» Name the agency responsible for the development of space science programmes in India. |
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| 49. |
Write true or false for each statement: (a) When sound propagates in air,it does not carry energy with it. (b) In a longitudinal wave,compression and rarefaction are formed. (c) The distance from one compression to nearest rarefaction is called wavelength. (d) The frequency is measured in second. (e) The quality of sound depends on the amplitude of wave.. (f) The pitch of sound depends on frequency.. (g) Decibel is the unit of pitch of a sound. |
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Answer» Write true or false for each statement: (a) When sound propagates in air,it does not carry energy with it. (b) In a longitudinal wave,compression and rarefaction are formed. (c) The distance from one compression to nearest rarefaction is called wavelength. (d) The frequency is measured in second. (e) The quality of sound depends on the amplitude of wave.. (f) The pitch of sound depends on frequency.. (g) Decibel is the unit of pitch of a sound. |
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| 50. |
It was found that a machine with moving parts was getting overheated. What was the heat due to? How can the heat generated be reduced? |
| Answer» It was found that a machine with moving parts was getting overheated. What was the heat due to? How can the heat generated be reduced? | |