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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.
| 4401. |
Why graphite is not used in ornaments? |
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Answer» Why graphite is not used in ornaments? |
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| 4402. |
1^{243}+2^{243}+3^{243}_ _ _ _ _ _ _+243^{243}÷2^{243 |
| Answer» 1^{243}+2^{243}+3^{243}_ _ _ _ _ _ _+243^{243}÷2^{243 | |
| 4403. |
Two balls of mass 2 kg and 4 kg are dropped together from a 60 feet tall building. After a fall of 30 feet, the ratio of their kinetic energy will be___. Neglect air resistance in both the cases. |
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Answer» Two balls of mass 2 kg and 4 kg are dropped together from a 60 feet tall building. After a fall of 30 feet, the ratio of their kinetic energy will be___. Neglect air resistance in both the cases. |
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| 4404. |
What types of zener diode are available. |
| Answer» What types of zener diode are available. | |
| 4405. |
The Sun is the biggest and brightest star. Do you agree? Give reasons. |
| Answer» The Sun is the biggest and brightest star. Do you agree? Give reasons. | |
| 4406. |
A rectangular loop is connected to a battery as shown in the figure. If the total resistance of the loop is 1 Ω, the magnitude of net force acting on it is,(Take B=0.1 T) |
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Answer» A rectangular loop is connected to a battery as shown in the figure. If the total resistance of the loop is 1 Ω, the magnitude of net force acting on it is, |
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| 4407. |
14. A boy of mass 40 kg is climbing a vertical pole at a constant speed. If the coefficient of friction between his palms and the pole is 0.8 andg 10 m/s" , the horizontal force that he is applying on the pole is(a)300N b) 400 N (d) 600 N (c) 500 N |
| Answer» 14. A boy of mass 40 kg is climbing a vertical pole at a constant speed. If the coefficient of friction between his palms and the pole is 0.8 andg 10 m/s" , the horizontal force that he is applying on the pole is(a)300N b) 400 N (d) 600 N (c) 500 N | |
| 4408. |
In an industrial process 10kg of water per hour is to be heated from 20∘Cto80∘C. To do this steam at 150∘C is passed from a boiler into a copper coil immersed in water. The steam condenses in the coil and is returned to the boiler as water at 90∘C then ___ kg of steam is required per hour. (Given: Specific heat of steam =1 calorie per g ∘C, latent heat of vaporization =540calg−1) |
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Answer» In an industrial process 10kg of water per hour is to be heated from 20∘Cto80∘C. To do this steam at 150∘C is passed from a boiler into a copper coil immersed in water. The steam condenses in the coil and is returned to the boiler as water at 90∘C then ___ kg of steam is required per hour. |
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| 4409. |
What happens to the level of water in a glass when the ice floating on its surface melts? |
| Answer» What happens to the level of water in a glass when the ice floating on its surface melts? | |
| 4410. |
Ram is trying to push a box from his living room to the storeroom. He asks his friend to help him complete the job. What should be the nature of the force applied by his friend? |
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Answer» Ram is trying to push a box from his living room to the storeroom. He asks his friend to help him complete the job. What should be the nature of the force applied by his friend? |
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| 4411. |
List out the objectives of Mangalyaan. |
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Answer» List out the objectives of Mangalyaan. |
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| 4412. |
Arrange the following events in the correct order:1. Reflected light enters our eye.2. Image formation.3. Light from a source.4. Object reflect light.5. Light falls on an object. |
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Answer» Arrange the following events in the correct order: 1. Reflected light enters our eye. 2. Image formation. 3. Light from a source. 4. Object reflect light. 5. Light falls on an object. |
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| 4413. |
The position time graph of two cars a and b are straight line making angle 30^° and 60^° with the time axus the ratio of velocity isof a and b1.1:\surd3 2.1:3 3.\surd3:14.3:1 |
| Answer» The position time graph of two cars a and b are straight line making angle 30^° and 60^° with the time axus the ratio of velocity isof a and b1.1:\surd3 2.1:3 3.\surd3:14.3:1 | |
| 4414. |
Which among the following is not an application of electrolysis? |
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Answer» Which among the following is not an application of electrolysis? |
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| 4415. |
Why are like poles repel each other and unlike attract,explain and proof it with the help of diagram |
| Answer» Why are like poles repel each other and unlike attract,explain and proof it with the help of diagram | |
| 4416. |
Any short method to find whether it is terminating or non terminating |
| Answer» Any short method to find whether it is terminating or non terminating | |
| 4417. |
In a resonance tube experiment to determine the speed of sound in air, a pipe of diameter 5 cm is used. The air column in the pipe resonates with a tuning fork of frequency 500 Hz , when the minimum length of the air column is 15.5 cm. Find the speed of sound in air at room temperature. |
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Answer» In a resonance tube experiment to determine the speed of sound in air, a pipe of diameter 5 cm is used. The air column in the pipe resonates with a tuning fork of frequency 500 Hz , when the minimum length of the air column is 15.5 cm. Find the speed of sound in air at room temperature. |
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| 4418. |
Why gravity doesnt attract the birds flying in the sk |
| Answer» Why gravity doesnt attract the birds flying in the sk | |
| 4419. |
Which of the following is/are a non-contact force(s)? 1. Gravitational force 2. Electrostatic force 3. Muscular force 4. Magnetic force |
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Answer» Which of the following is/are a non-contact force(s)? 1. Gravitational force 2. Electrostatic force 3. Muscular force 4. Magnetic force |
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| 4420. |
How will you show that air dissolves in water? |
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Answer» How will you show that air dissolves in water? |
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| 4421. |
Amount of a substance present in per unit volume is called |
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Answer» Amount of a substance present in per unit volume is called |
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| 4422. |
How is a Eureka can used to determine the volume of an irregular solid? |
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Answer» How is a Eureka can used to determine the volume of an irregular solid? |
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| 4423. |
{ If }x ,y are positive real numbers satisfying the }}{ system of equations }x^2+y\sqrt{xy}=336}{y^2+x\sqrt{xy}=112, then }x+y equals |
| Answer» { If }x ,y are positive real numbers satisfying the }}{ system of equations }x^2+y\sqrt{xy}=336}{y^2+x\sqrt{xy}=112, then }x+y equals | |
| 4424. |
What is torque and a couple of forces ? |
| Answer» What is torque and a couple of forces ? | |
| 4425. |
Describe drag friction with one paragraph |
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Answer» Describe drag friction with one paragraph |
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| 4426. |
A tester is used to check the conductivity of an unknown solution of water. What can be concluded, if the bulb of the tester glows brightly? |
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Answer» A tester is used to check the conductivity of an unknown solution of water. What can be concluded, if the bulb of the tester glows brightly? |
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| 4427. |
Complete the table. Nature of sound Unpleasant Pleasant Speaking Whispering Aeroplane sounds Horns of Vehicles Railway Engine Rustling of leaves Neighing of a horse Ticking of a clock |
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Answer» Complete the table.
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| 4428. |
Question 1 (b) Fill in the blank: Friction depends on the _________ of surfaces. |
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Answer» Question 1 (b) Fill in the blank: Friction depends on the _________ of surfaces. |
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| 4429. |
1. Find the average kinetic energy per mole of Hydrogen gas at 300K |
| Answer» 1. Find the average kinetic energy per mole of Hydrogen gas at 300K | |
| 4430. |
16.A spherical ball is dropped in a long column of viscous liquid . The graph for variation of speed of the ball as function of time is ?? |
| Answer» 16.A spherical ball is dropped in a long column of viscous liquid . The graph for variation of speed of the ball as function of time is ?? | |
| 4431. |
a rod is placed at an angle theta with the vertical. find the initial frictional force acting on it and the normal force ; provided no slippingtakes place. |
| Answer» a rod is placed at an angle theta with the vertical. find the initial frictional force acting on it and the normal force ; provided no slippingtakes place. | |
| 4432. |
A point charge carries a positive charge + q and is maintained at altitude at over a large conducting uncharged plate the electric force of interaction between the chart and the plate is better described as (1)zero force (2) an attractive force proportional to q/h^2 (3) an attractive force proportional to q^2/4h^2(4) repulsive force proportional to q^2/h^2 |
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Answer» A point charge carries a positive charge + q and is maintained at altitude at over a large conducting uncharged plate the electric force of interaction between the chart and the plate is better described as (1)zero force (2) an attractive force proportional to q/h^2 (3) an attractive force proportional to q^2/4h^2 (4) repulsive force proportional to q^2/h^2 |
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| 4433. |
why not △ G=△ S=0 for reaction having equal energies of activation for forward and backward reverse reaction? |
| Answer» why not △ G=△ S=0 for reaction having equal energies of activation for forward and backward reverse reaction? | |
| 4434. |
When charges move, they constitute a/an: |
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Answer» When charges move, they constitute a/an: |
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| 4435. |
What is caused when the Moon moves into the Earth's shadow? |
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Answer» What is caused when the Moon moves into the Earth's shadow? |
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| 4436. |
Tap the surface on which friction due to the plowing effect is predominant. |
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Answer» Tap the surface on which friction due to the plowing effect is predominant. |
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| 4437. |
Describe the method of charging a conductor by conduction. |
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Answer» Describe the method of charging a conductor by conduction. |
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| 4438. |
Question 13A person holds a bundle of hay over his head for 30 minutes and gets tired. Has he done some work or not? Justify your answer. |
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Answer» Question 13 A person holds a bundle of hay over his head for 30 minutes and gets tired. Has he done some work or not? Justify your answer. |
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| 4439. |
A mixture of radioactive substances gives off three types of radiations. The radiation which has the highest ionizing power is |
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Answer» A mixture of radioactive substances gives off three types of radiations. The radiation which has the highest ionizing power is |
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| 4440. |
What are the two kind of charges? |
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Answer» What are the two kind of charges? |
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| 4441. |
Read the two paragraphs given below.My mother is always awake before anyone else in the family. I usually wake up after 6 o’ clock. I loll around lazily for a few minutes. Then I get up and get dressed for school.At bedtime, I read a story book. When I feel tired I lie down and go to sleep very quickly. I fall asleep in no time at all!(i) Now find the opposites of the following words from the paragraphs and complete the table. awake asleep wake up ________________ get up ________________ lazily ________________ (ii) Fill in the blanks using the words in the previous questions.(a) ______________ and ______________ quickly! You will be late for school.(b) Shh! The baby is ______________. Don't make a sound, or she will ______________.(c) Are you still ______________? You should be ______________ now or you will not be able to_____________ in the morning for school. |
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Answer» Read the two paragraphs given below. (i) Now find the opposites of the following words from the paragraphs and complete the table.
(ii) Fill in the blanks using the words in the previous questions. (a) ______________ and ______________ quickly! You will be late for school. (b) Shh! The baby is ______________. Don't make a sound, or she will ______________. (c) Are you still ______________? You should be ______________ now or you will not be able to_____________ in the morning for school. |
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| 4442. |
Question 24 John and Radha were classmates since childhood. When Radha became eleven years old, she developed a little swelling on her neck. She visited the doctor who started medication for her. After a few years, John also developed a slight protrusion on his throat. He got worried and went to the doctor. But, the doctor assured him that it was a normal feature in boys while they are growing up. Can you think of any reason for the difference in diagnosis? |
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Answer» Question 24 John and Radha were classmates since childhood. When Radha became eleven years old, she developed a little swelling on her neck. She visited the doctor who started medication for her. After a few years, John also developed a slight protrusion on his throat. He got worried and went to the doctor. But, the doctor assured him that it was a normal feature in boys while they are growing up. Can you think of any reason for the difference in diagnosis? |
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| 4443. |
How does boiling point depends on pressure? |
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Answer» How does boiling point depends on pressure? |
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| 4444. |
42. On introducing an insulating material 4mm thick, into the space between the plates of parallel capacitor it was found in order to restore the capacitance to its original value the distance between the plates had to be increased by 3.5mm . Calculate the dielectric constant of the material.(the �length of the insulating material is parallel to the length of plates of the capacitor). |
| Answer» 42. On introducing an insulating material 4mm thick, into the space between the plates of parallel capacitor it was found in order to restore the capacitance to its original value the distance between the plates had to be increased by 3.5mm . Calculate the dielectric constant of the material.(the �length of the insulating material is parallel to the length of plates of the capacitor). | |
| 4445. |
Why is this so?(a) Traveller’s bags have wheels.(b) Machines have to be maintained.(c) A bicyle is said to be a complex machine. |
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Answer» Why is this so? (a) Traveller’s bags have wheels. (b) Machines have to be maintained. (c) A bicyle is said to be a complex machine. |
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| 4446. |
Which of the following figures shows the correct image of "P” in the mirror? |
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Answer» Which of the following figures shows the correct image of "P” in the mirror? |
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| 4447. |
A stone is dropped from the roof of a tower of height h. the total distance covered by the stone in the last 2 seconds of its motion is equal to distance covered by it in first four seconds. find the height of the tower. |
| Answer» A stone is dropped from the roof of a tower of height h. the total distance covered by the stone in the last 2 seconds of its motion is equal to distance covered by it in first four seconds. find the height of the tower. | |
| 4448. |
Why can't we hear the sound through a matchbox phone when the string is slack and again can hear it when the string is taut? |
| Answer» Why can't we hear the sound through a matchbox phone when the string is slack and again can hear it when the string is taut? | |
| 4449. |
35.A charge 2q is placed at one of the corners of a cube of side a. The electric flux through the face not touching the charge is |
| Answer» 35.A charge 2q is placed at one of the corners of a cube of side a. The electric flux through the face not touching the charge is | |
| 4450. |
What is magnitude and vector laws |
| Answer» What is magnitude and vector laws | |
