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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.
| 3201. |
Which of the following statements is incorrect? (a) static friction is greater than rolling friction (b) sliding friction is less than rolling friction (c) rolling friction is less than static friction (d) static friction is greater than sliding friction |
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Answer» Which of the following statements is incorrect? |
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| 3202. |
Question 12Does any part of our body vibrate when we speak? Name the part. |
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Answer» Question 12 Does any part of our body vibrate when we speak? Name the part. |
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| 3203. |
Can electoplating reduce friction too? If yes, how? [2 MARKS] |
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Answer» Can electoplating reduce friction too? If yes, how? |
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| 3204. |
A light ray entered a rectangular glass slab. if i be the angle of incidence and e be the angle of emergence, then: |
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Answer» A light ray entered a rectangular glass slab. if i be the angle of incidence and e be the angle of emergence, then: |
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| 3205. |
Is the direction of absolute pressure upwards? Is it opposite of the pressure of the atmosphere and the fluid |
| Answer» Is the direction of absolute pressure upwards? Is it opposite of the pressure of the atmosphere and the fluid | |
| 3206. |
The charge per unit volume inside an insulating sphere of radius R is given as a function of distance from centre ρ(r)=cr , Where 0<r<R. The magnitude of electric field at a distance ′b′ from the centre of sphere will be |
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Answer» The charge per unit volume inside an insulating sphere of radius R is given as a function of distance from centre ρ(r)=cr , Where 0<r<R. The magnitude of electric field at a distance ′b′ from the centre of sphere will be |
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| 3207. |
A coin and a peice of paper are dropped simultaneously from the same height. Which of the two will touch the ground first? What will happen if the coin and the peice of paper are dropped in vacuum? Give reasons for your answer. |
| Answer» A coin and a peice of paper are dropped simultaneously from the same height. Which of the two will touch the ground first? What will happen if the coin and the peice of paper are dropped in vacuum? Give reasons for your answer. | |
| 3208. |
A tester is used to check the conduction of electricity through two liquids, labelled A and B. It is found that the bulb of the tester glows brightly for liquid A while it glows very dimly for liquid B. From the above observations one can conclude that: |
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Answer»
A tester is used to check the conduction of electricity through two liquids, labelled A and B. It is found that the bulb of the tester glows brightly for liquid A while it glows very dimly for liquid B. From the above observations one can conclude that:
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| 3209. |
The electrical charge can be transferred from a charged object to another through |
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Answer» The electrical charge can be transferred from a charged object to another through |
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| 3210. |
why does a ballon swell up on filling air on it |
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Answer» why does a ballon swell up on filling air on it |
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| 3211. |
Two boys A and B are standing at two positions as shown in the diagram. Each step is 20 cm high and 20 cm wide. The potential energy is assumed to be zero at the ground. Consider g=10 m/s2 and assume that there is no loss of energy.If B releases a ball of mass 500 grams from the height as shown in the diagram, what will be the velocity of the ball when it reaches the level of the third step from the ground?[1 mark] |
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Answer» Two boys A and B are standing at two positions as shown in the diagram. Each step is 20 cm high and 20 cm wide. The potential energy is assumed to be zero at the ground. Consider g=10 m/s2 and assume that there is no loss of energy. |
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| 3212. |
The first two lengths of an air column in a resonance column method to measure speed of sound in air were found to be 50 cm and 152 cm respectively. If the velocity of sound in the laboratory is 340 m/s . Find the frequency of the vibrating tuning fork and the end correction of the tube. |
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Answer» The first two lengths of an air column in a resonance column method to measure speed of sound in air were found to be 50 cm and 152 cm respectively. If the velocity of sound in the laboratory is 340 m/s . Find the frequency of the vibrating tuning fork and the end correction of the tube. |
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| 3213. |
Find relation between a) work function and kinetic energyb) work function and potential energy |
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Answer» Find relation between a) work function and kinetic energy b) work function and potential energy |
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| 3214. |
Why when volume increases, equilibrium proceeds in direction with more no of moles? |
| Answer» Why when volume increases, equilibrium proceeds in direction with more no of moles? | |
| 3215. |
Tap on the shape which can be used to fill the given image without any gaps. |
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Answer» Tap on the shape which can be used to fill the given image without any gaps. |
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| 3216. |
Two point charges Q1 and Q2 placed at separation d in vacuum and force acting between them is F.Now a dielectric slab of thickness d/2 and dielectric cons†an t K=4 is placed between them. The new force between the charge will be |
| Answer» Two point charges Q1 and Q2 placed at separation d in vacuum and force acting between them is F.Now a dielectric slab of thickness d/2 and dielectric cons†an t K=4 is placed between them. The new force between the charge will be | |
| 3217. |
Evaporation takes place |
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Answer» Evaporation takes place |
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| 3218. |
The number of excess electron present in the body having net charge -1.6×10^-18C is1)1002)53)14)10 |
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Answer» The number of excess electron present in the body having net charge -1.6×10^-18C is 1)100 2)5 3)1 4)10 |
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| 3219. |
How to determine that a capacitor is connected in parallel or in series of complex circuit diagrams? |
| Answer» How to determine that a capacitor is connected in parallel or in series of complex circuit diagrams? | |
| 3220. |
If electric charge is quantised, then why don't we consider it in case of quark particles? |
| Answer» If electric charge is quantised, then why don't we consider it in case of quark particles? | |
| 3221. |
what is a cocentration cell and how does it work? s |
| Answer» what is a cocentration cell and how does it work? s | |
| 3222. |
What is the value of θ in the following ray diagram? |
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Answer» What is the value of θ in the following ray diagram?
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| 3223. |
on account of the rotation of earth about its axis 1.the linear velocity of objects at equator is greater than that at other places2.the angular velocity of objects at equator is more than that of objects at poles3. the linear velocity of objects at all places on the earth is equal , but angular velocity is different 4. the angular velocity and linear velocity are uniform at all places |
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Answer» on account of the rotation of earth about its axis 1.the linear velocity of objects at equator is greater than that at other places 2.the angular velocity of objects at equator is more than that of objects at poles 3. the linear velocity of objects at all places on the earth is equal , but angular velocity is different 4. the angular velocity and linear velocity are uniform at all places |
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| 3224. |
Explain the working of a compound microscope? |
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Answer» Explain the working of a compound microscope? |
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| 3225. |
In a vertical U-tube containing a liquid, the two arms are maintained at different temperature t1 & t2. The liquid columns in the two arms have length l1 & l2 respectively. The coefficient of volume expansion of the liquid is equal to |
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Answer» In a vertical U-tube containing a liquid, the two arms are maintained at different temperature t1 & t2. The liquid columns in the two arms have length l1 & l2 respectively. The coefficient of volume expansion of the liquid is equal to |
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| 3226. |
What would happen if the grooves and ridges were not present on our palms? |
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Answer» What would happen if the grooves and ridges were not present on our palms? |
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| 3227. |
Consider a train which can accelerate with an acceleration of 20cm/s^2 and slow down with deceleration of 100cm/s^2. Find the minimum time for the train to travel between the stations 2.7km apart.A. 90 secB. 180 secC. 160 secD. 240 sec |
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Answer» Consider a train which can accelerate with an acceleration of 20cm/s^2 and slow down with deceleration of 100cm/s^2. Find the minimum time for the train to travel between the stations 2.7km apart. A. 90 sec B. 180 sec C. 160 sec D. 240 sec |
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| 3228. |
The minimum and maximum dis†an ces of a planet revolving around sun are r and R .If the minimum speed of planet on its trajectory is v ,its maximum speed will b |
| Answer» The minimum and maximum dis†an ces of a planet revolving around sun are r and R .If the minimum speed of planet on its trajectory is v ,its maximum speed will b | |
| 3229. |
Two identical point charges +Q are fixed in a gravity free space at a separation 2L. Another particle with mass m and charge - is placed midway between these charges. Now this particle is slightly displaced a distance x, perpendicular to line joining these charges and released.Show that this particle will execute SHM and also find its oscillation period |
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Answer» Two identical point charges +Q are fixed in a gravity free space at a separation 2L. Another particle with mass m and charge - is placed midway between these charges. Now this particle is slightly displaced a distance x, perpendicular to line joining these charges and released. Show that this particle will execute SHM and also find its oscillation period |
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| 3230. |
What is an electrolytic cell? |
| Answer» What is an electrolytic cell? | |
| 3231. |
Which of the following is a safe position during lightning? |
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Answer» Which of the following is a safe position during lightning? |
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| 3232. |
Why will a sheet of paper fall slower than one that is crumpled into a ball? |
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Answer» Why will a sheet of paper fall slower than one that is crumpled into a ball? |
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| 3233. |
It requires 40ml of of 1M HxA to react completely with 20ml of 1M Ca(OH)2. What os the value of X? |
| Answer» It requires 40ml of of 1M HxA to react completely with 20ml of 1M Ca(OH)2. What os the value of X? | |
| 3234. |
The volume of a cube is increasing at the rate of 8 cm3/s. How fast is the surface area increasing when the length of an edge is 12 cm? |
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Answer» The volume of a cube is increasing at the rate of 8 cm3/s. How fast is the surface area increasing when the length of an edge is 12 cm? |
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| 3235. |
if A+B+C=0 then A× B i |
| Answer» if A+B+C=0 then A× B i | |
| 3236. |
Find the area of a triangular wooden shelf whose perpendicular sides are 48 inches. |
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Answer» Find the area of a triangular wooden shelf whose perpendicular sides are 48 inches.
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| 3237. |
Two metallic spheres of charge Q at r distance apart . Find the electrostatic force between them |
| Answer» Two metallic spheres of charge Q at r distance apart . Find the electrostatic force between them | |
| 3238. |
State whether the following statements are true or false : (a) Like charges attract each other. (b) A charged glass rod attracts a charged plastic straw. (c) Lightning conductor cannot protect a building from lightning. (d) Earthquakes can be predicted in advance. (e) An earthquakes of magnitude 2 on Richter Scale is ten times as strong as an earthquake of magnitude 1 on the same Scale. (f) The plates of earth's crust are continuously moving. (g) An earthquake is measured and recorded by using an instrument called electrocardiograph. |
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Answer» State whether the following statements are true or false : (a) Like charges attract each other. (b) A charged glass rod attracts a charged plastic straw. (c) Lightning conductor cannot protect a building from lightning. (d) Earthquakes can be predicted in advance. (e) An earthquakes of magnitude 2 on Richter Scale is ten times as strong as an earthquake of magnitude 1 on the same Scale. (f) The plates of earth's crust are continuously moving. (g) An earthquake is measured and recorded by using an instrument called electrocardiograph. |
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| 3239. |
Between 0 and 4 degree Celsius |
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Answer» Between 0 and 4 degree Celsius |
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| 3240. |
Name a device which works on the reflection of reflected light. |
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Answer» Name a device which works on the reflection of reflected light. |
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| 3241. |
A longitudinal wave is propagating in water as shown below. What can be the possible direction of vibration of water molecules? |
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Answer» A longitudinal wave is propagating in water as shown below. |
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| 3242. |
Which among the following imperative sentences is a command? |
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Answer» Which among the following imperative sentences is a command? |
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| 3243. |
9. What is the derivation for relation BTW m and M by density. Formula |
| Answer» 9. What is the derivation for relation BTW m and M by density. Formula | |
| 3244. |
Question 10Explain in what way noise pollution is harmful to humans. |
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Answer» Question 10 |
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| 3245. |
In which direction will a light falling along the normal to a mirror be reflected Could you please check my answer Ans: as the incident ray is zero degree the reflected ray will also be reflected at the same angle which is at zero degree along the normal |
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Answer» In which direction will a light falling along the normal to a mirror be reflected Could you please check my answer Ans: as the incident ray is zero degree the reflected ray will also be reflected at the same angle which is at zero degree along the normal |
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| 3246. |
20. A pot of mass 1 kg is raised vertically at a constant velocity, by holding it firmly with both hands. Coefficient of friction between the hands and the pot is 0 2. What is the force applied by each hand? |
| Answer» 20. A pot of mass 1 kg is raised vertically at a constant velocity, by holding it firmly with both hands. Coefficient of friction between the hands and the pot is 0 2. What is the force applied by each hand? | |
| 3247. |
The output of a Mealy system is 1, if there has been a pattern of 11000, otherwise 0. The minimum number of states for this system is____.5 |
Answer» The output of a Mealy system is 1, if there has been a pattern of 11000, otherwise 0. The minimum number of states for this system is____.
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| 3248. |
What is laughing gas ?it's function? |
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Answer» What is laughing gas ?it's function? |
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| 3249. |
A light ray passes from air through a thin rectangular plastic slab (refractive index = 1.3). If the ray in air makes an angle of 45∘ with the normal after leaving the slab, what is the angle of incidence for the light falling on the plastic slab? |
| Answer» A light ray passes from air through a thin rectangular plastic slab (refractive index = 1.3). If the ray in air makes an angle of 45∘ with the normal after leaving the slab, what is the angle of incidence for the light falling on the plastic slab? | |
| 3250. |
A person is balancing between two walls. Identify the direction of friction at the point of contact |
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Answer» A person is balancing between two walls. Identify the direction of friction at the point of contact |
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What can be the possible direction of vibration of water molecules?