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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.
| 5301. |
Two identical cubes A and B are placed in a tank containing a liquid as shown below. Choose the correct statement regarding pressures exerted on them. |
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Answer» Two identical cubes A and B are placed in a tank containing a liquid as shown below. Choose the correct statement regarding pressures exerted on them. |
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| 5302. |
Identify the given images and give a suitable title. |
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Answer» Identify the given images and give a suitable title. |
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| 5303. |
Question 08 Answer the following question: A. Why is sliding friction less than static friction for the same surface? B. A book of mass 1 kg is at rest on the table. Maximum value of static friction is 200 N and sliding friction is 180 N. Now, Answer: i. If we apply a force of 190 N will the body move from rest? ii. If we apply a force of 210 N will the body move from rest? iii. What is the acceleration of the book if I apply 220 N of force? [5 MARKS] |
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Answer» Question 08 Answer the following question: A. Why is sliding friction less than static friction for the same surface? B. A book of mass 1 kg is at rest on the table. Maximum value of static friction is 200 N and sliding friction is 180 N. Now, Answer: i. If we apply a force of 190 N will the body move from rest? ii. If we apply a force of 210 N will the body move from rest? iii. What is the acceleration of the book if I apply 220 N of force? [5 MARKS] |
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| 5304. |
The density of mercury is 13.6×103kgm−3. This means that the mass of 1cm3 of mercury is |
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Answer» The density of mercury is 13.6×103kgm−3. This means that the mass of 1cm3 of mercury is |
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| 5305. |
The radius of curvature of a concave mirror is 40 cm. Find position of an object in front of the mirror, sothat its real image is two times the size of the object. |
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Answer» The radius of curvature of a concave mirror is 40 cm. Find position of an object in front of the mirror, so that its real image is two times the size of the object. |
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| 5306. |
Select a suitable alternative for the blank. The ______ sails began to tear because of the strong winds. |
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Answer» Select a suitable alternative for the blank. The ______ sails began to tear because of the strong winds. |
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| 5307. |
20.Two identical capacitor C1 and C2 of capacitance 10micro farad are connected in series to a cell of emf 12V. Capacitor C2 is filled with dielectric constant=4. The energy stored in capacitor C2 is |
| Answer» 20.Two identical capacitor C1 and C2 of capacitance 10micro farad are connected in series to a cell of emf 12V. Capacitor C2 is filled with dielectric constant=4. The energy stored in capacitor C2 is | |
| 5308. |
Prove that kinetic energy depends on the frame of reference |
| Answer» Prove that kinetic energy depends on the frame of reference | |
| 5309. |
‘The poetry of earth’ is not made of words. What is it made of, as suggested in the poem? |
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Answer» ‘The poetry of earth’ is not made of words. What is it made of, as suggested in the poem? |
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| 5310. |
The two pointer stars the line passing through which points to the direction of pole star are a part of the constellation called: (a) Ursa Major (b) Orion (c) Cassiopeia (d) Leo Major |
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Answer» The two pointer stars the line passing through which points to the direction of pole star are a part of the constellation called: (a) Ursa Major (b) Orion (c) Cassiopeia (d) Leo Major |
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| 5311. |
6.Weight of a body decreases by 1.5%, when it is raised to a height h above the surface of earth. When the same body is taken to some depth h in a mine, its weight will show 1) 0.75% increase 2) 3.0% decrease 3) 0.75% decrease 4) 1.5% decrease |
| Answer» 6.Weight of a body decreases by 1.5%, when it is raised to a height h above the surface of earth. When the same body is taken to some depth h in a mine, its weight will show 1) 0.75% increase 2) 3.0% decrease 3) 0.75% decrease 4) 1.5% decrease | |
| 5312. |
Graphite powder is used in machines to |
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Answer» Graphite powder is used in machines to |
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| 5313. |
Mention the properties of acrylic. |
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Answer» Mention the properties of acrylic. |
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| 5314. |
Will the sound of a bursting cracker travel fastly or the sound of a buzzing bee? |
| Answer» Will the sound of a bursting cracker travel fastly or the sound of a buzzing bee? | |
| 5315. |
Which of the following is/are the correct unit(s) of momentum? |
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Answer» Which of the following is/are the correct unit(s) of momentum? |
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| 5316. |
8. Write any two irrational nos. between 3root5 and 2root3 |
| Answer» 8. Write any two irrational nos. between 3root5 and 2root3 | |
| 5317. |
what is the field of electric dipole? |
| Answer» what is the field of electric dipole? | |
| 5318. |
Assume that the displacement (s) of air is proportional to the pressure difference (Δp) created by a sound wave. Displacement (s) further depends on the speed of sound (v), density of air (ρ) and the frequency (f). If Δp∼10 Pa,v∼300 m/s,ρ∼1 kg/m3 and f∼1000 Hz, then s will be of the order of (take the multiplicative constant to be 1) |
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Answer» Assume that the displacement (s) of air is proportional to the pressure difference (Δp) created by a sound wave. Displacement (s) further depends on the speed of sound (v), density of air (ρ) and the frequency (f). If Δp∼10 Pa,v∼300 m/s,ρ∼1 kg/m3 and f∼1000 Hz, then s will be of the order of (take the multiplicative constant to be 1) |
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| 5319. |
What is a magnetic material |
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Answer» What is a magnetic material |
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| 5320. |
The water in a bottle leaks through a hole. If the volume of water at any time is represented by the shaded part of the models below, find the volume of water in the bottle at 10:02 AM. |
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Answer» The water in a bottle leaks through a hole. If the volume of water at any time is represented by the shaded part of the models below, find the volume of water in the bottle at 10:02 AM.  |
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| 5321. |
All objects having uniform speed need not have uniform velocity. Describe with the help of examples. |
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Answer» All objects having uniform speed need not have uniform velocity. Describe with the help of examples. |
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| 5322. |
A monkey of mass 30 kg climbs a rope which can withstand a maximum tension of 360N . The maximum acceleration which this rope can tolerate for the climbing of monkey is |
| Answer» A monkey of mass 30 kg climbs a rope which can withstand a maximum tension of 360N . The maximum acceleration which this rope can tolerate for the climbing of monkey is | |
| 5323. |
An object starting from rest travels 20 m in first 2 s and 160 m in next 4 s.What will be the velocity after 7 s from the start? |
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Answer» An object starting from rest travels 20 m in first 2 s and 160 m in next 4 s. |
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| 5324. |
A hot liquids is filled in a container and kept in a room of temperature of 25^°. The liquid emits heat at the rate of 200 J/s. When its temperature is 75^° C. When the temperature of the liquid becomes 40^° C , the rate of heat loss in J/s is (a) 160 (b) 140 (c) 80 (d) 6 |
| Answer» A hot liquids is filled in a container and kept in a room of temperature of 25^°. The liquid emits heat at the rate of 200 J/s. When its temperature is 75^° C. When the temperature of the liquid becomes 40^° C , the rate of heat loss in J/s is (a) 160 (b) 140 (c) 80 (d) 6 | |
| 5325. |
Explain the following: (a) Sleepers are used below the rails. (b) A tall building has wide foundations. |
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Answer» Explain the following: (a) Sleepers are used below the rails. (b) A tall building has wide foundations. |
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| 5326. |
Derive excess pressure inside a soap bubble expression with charge density p and radius r |
| Answer» Derive excess pressure inside a soap bubble expression with charge density p and radius r | |
| 5327. |
Sam has participated in a 100 m race in his school. If he expensed 450 W power in just the first 2 seconds of the race, then calculate his final velocity after 2 seconds.Mass of Sam = 50 kg |
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Answer» Sam has participated in a 100 m race in his school. If he expensed 450 W power in just the first 2 seconds of the race, then calculate his final velocity after 2 seconds. Mass of Sam = 50 kg |
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| 5328. |
When water is electrolysed, the gas collected at cathode is _________. |
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Answer» When water is electrolysed, the gas collected at cathode is _________. |
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| 5329. |
is root 3/3 is irrational |
| Answer» is root 3/3 is irrational | |
| 5330. |
Why is it advisable to stay inside a car during a thunderstorm? |
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Answer» Why is it advisable to stay inside a car during a thunderstorm? |
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| 5331. |
Why does an object weigh more in vaccum and then in air? |
| Answer» Why does an object weigh more in vaccum and then in air? | |
| 5332. |
Why does the radius of a cation decreases with increase in temperature? |
| Answer» Why does the radius of a cation decreases with increase in temperature? | |
| 5333. |
12. A wooden cube just floats inside water with a 200 gm mass placed on it. When the mass is removed, the cube floats with its top surface 2 cmm above the water level. What is the side of the cube? (1) 6 cm (3) 10 cm (2) 8 cm (4) 12 cm |
| Answer» 12. A wooden cube just floats inside water with a 200 gm mass placed on it. When the mass is removed, the cube floats with its top surface 2 cmm above the water level. What is the side of the cube? (1) 6 cm (3) 10 cm (2) 8 cm (4) 12 cm | |
| 5334. |
the equivalent mass of fe in feo i |
| Answer» the equivalent mass of fe in feo i | |
| 5335. |
Steam enters a well insulated turbine and expands isentropically throughout. At an intermediate pressure, 20 percent of the mass is extracted for process heating and the remaining steam expands isentropically to 9 kPa. Inlet to turbine; P = 14 MPa, T = 560oC, h = 3486 kJ/kg, s =6.6kJ/(kgK)Intermediate state; h = 276kJ/kg Exit of turbine: P =9 kPa,hf=174 kJ\kg. hg=2574 kJ/kg, sf=0.6 kJ/(kgK) sg=8.1 kJ(kgK) If the flow rate of steam entering the turbine is 100 kg/s, then the work output (in MW) is 125.56 |
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Answer» Steam enters a well insulated turbine and expands isentropically throughout. At an intermediate pressure, 20 percent of the mass is extracted for process heating and the remaining steam expands isentropically to 9 kPa. Inlet to turbine; P = 14 MPa, T = 560oC, h = 3486 kJ/kg, s =6.6kJ/(kgK) Intermediate state; h = 276kJ/kg Exit of turbine: P =9 kPa,hf=174 kJ\kg. hg=2574 kJ/kg, sf=0.6 kJ/(kgK) sg=8.1 kJ(kgK) If the flow rate of steam entering the turbine is 100 kg/s, then the work output (in MW) is
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| 5336. |
Write SI unit of force and pressure? |
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Answer» Write SI unit of force and pressure? |
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| 5337. |
Why don't we use elastic measuring tape to measure distance? What would be some of the problems you would meet in telling someone about a distance you measured with an elastic tape? |
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Answer» Why don't we use elastic measuring tape to measure distance? What would be some of the problems you would meet in telling someone about a distance you measured with an elastic tape? |
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| 5338. |
why the two points got short circuit |
| Answer» why the two points got short circuit | |
| 5339. |
2.13.Find the frequency of 1 MeV photon. Given wavelength of a 1keV photon is 1.24 x 10m |
| Answer» 2.13.Find the frequency of 1 MeV photon. Given wavelength of a 1keV photon is 1.24 x 10m | |
| 5340. |
What was the first artificial satellite to orbit Earth? |
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Answer» What was the first artificial satellite to orbit Earth? |
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| 5341. |
An L−R circuit having L=1 H , R=5 Ω and E=2 V is switched on at t=0. Find the charge that passes through the battery in one time constant (τ). |
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Answer» An L−R circuit having L=1 H , R=5 Ω and E=2 V is switched on at t=0. Find the charge that passes through the battery in one time constant (τ). |
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| 5342. |
What is the use of a maximum-minimum thermometer? |
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Answer» What is the use of a maximum-minimum thermometer? |
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| 5343. |
Motion pictures create an optical illusion known as persistence of vision. What should be the minimum frame rate of motion pictures so that we can distinguish between different images? |
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Answer» Motion pictures create an optical illusion known as persistence of vision. What should be the minimum frame rate of motion pictures so that we can distinguish between different images? |
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| 5344. |
Which of the sounds having the following frequencies can be heard by the human beings and which cannot? (a) 6 Hz (b) 5000 Hz (c) 10000 Hz (di) 35000 Hz (e) 18 kHz |
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Answer» Which of the sounds having the following frequencies can be heard by the human beings and which cannot? (a) 6 Hz (b) 5000 Hz (c) 10000 Hz (di) 35000 Hz (e) 18 kHz |
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| 5345. |
Regular reflection takes place when a beam of light strikes : |
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Answer» Regular reflection takes place when a beam of light strikes : |
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| 5346. |
Least stable metal carbonyl a) V(CO)6 b) C2(CO)8 c) Mn2(CO)10 d) Cr(CO)6 |
| Answer» Least stable metal carbonyl a) V(CO)6 b) C2(CO)8 c) Mn2(CO)10 d) Cr(CO)6 | |
| 5347. |
The application of force on an object may change its |
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Answer» The application of force on an object may change its |
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| 5348. |
47. A nugget of gold and quartz weigh 100g specific gravity of gold quartz and nugget are 19.3 2.6 and 6.4 respectively. Calculate the mass of gold in the nugget. 68.6g 66.8g 86.6g 88.6g |
| Answer» 47. A nugget of gold and quartz weigh 100g specific gravity of gold quartz and nugget are 19.3 2.6 and 6.4 respectively. Calculate the mass of gold in the nugget. 68.6g 66.8g 86.6g 88.6g | |
| 5349. |
70.If a length of force constant k is cut away.The force constant of the remaining spring will be |
| Answer» 70.If a length of force constant k is cut away.The force constant of the remaining spring will be | |
| 5350. |
What is an electroscope? Draw a labelled diagram of an electroscope and explain its working. |
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Answer» What is an electroscope? Draw a labelled diagram of an electroscope and explain its working. |
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