9478 + Interview Questions in Physics Page 160 InterviewSolution

7951.	Can we change the position of the pole star so that southern hemisphere can also see it
Answer» Can we change the position of the pole star so that southern hemisphere can also see it

Discussion

7952.	Explain the terms boiling and boiling point.
Answer» Explain the terms boiling and boiling point.

7952.

Explain the terms boiling and boiling point.

Answer»

Explain the terms boiling and boiling point.

Discussion

7953.	The charge of Mg in MgCl2 is ___
Answer» The charge of Mg in $M g {C l}_{2}$ is ___

Discussion

7954.	If the potential difference across a conductor is 10 V, 5 A current flows through it. What will be the current if the potential difference is increased to 15 V?
Answer» If the potential difference across a conductor is 10 V, 5 A current flows through it. What will be the current if the potential difference is increased to 15 V?

Discussion

7955.	The real expansion of a liquid is always _________.
Answer» The real expansion of a liquid is always _________.

Discussion

7956.	What is mirage ? Give a reason for its formation.
Answer» What is mirage ? Give a reason for its formation.

Discussion

7957.	Answer the following questions: A. Why do we slip on a recently mopped floor? B. Alida runs her toy car on dry marble floor, wet marble floor, newspaper and towel spread on the floor. The force of friction acting on the car on different surfaces in increasing order will be (a) wet marble floor, dry marble floor, newspaper and towel. (b) newspaper, towel, dry marble floor, wet marble floor. (c) towel, newspaper, dry marble floor, wet marble floor (d) wet marble floor, dry marble floor, towel, newspaper [5 MARKS]
Answer» Answer the following questions: A. Why do we slip on a recently mopped floor? B. Alida runs her toy car on dry marble floor, wet marble floor, newspaper and towel spread on the floor. The force of friction acting on the car on different surfaces in increasing order will be (a) wet marble floor, dry marble floor, newspaper and towel. (b) newspaper, towel, dry marble floor, wet marble floor. (c) towel, newspaper, dry marble floor, wet marble floor (d) wet marble floor, dry marble floor, towel, newspaper [5 MARKS]

Discussion

7958.	What effect does an electric current produce when flowing through a conducting liquid (or conducting solution) ?
Answer» What effect does an electric current produce when flowing through a conducting liquid (or conducting solution) ?

Discussion

7959.	How many electrons are there in 1 coulomb of charge?
Answer» How many electrons are there in 1 coulomb of charge?

Discussion

7960.	Can mechatronics engineer makes missiles?
Answer» Can mechatronics engineer makes missiles?

Discussion

7961.	Find three natural numbers whose sum and product are equal
Answer» Find three natural numbers whose sum and product are equal

Discussion

7962.	What happens when electrodes are immersed in water and a current is passed? Which electrode will wear out faster and why? [3 MARKS]
Answer» What happens when electrodes are immersed in water and a current is passed? Which electrode will wear out faster and why? [3 MARKS]

Discussion

7963.	What happens to the stars during the daytime?
Answer» What happens to the stars during the daytime?

Discussion

7964.	Why it is advised to cut off the power supply and switch off all the electrical appliances at the time of flood?
Answer» Why it is advised to cut off the power supply and switch off all the electrical appliances at the time of flood?

Discussion

7965.	What is the 'drag' in fluids? [2 MARKS]
Answer» What is the 'drag' in fluids? [2 MARKS]

Discussion

7966.	The temperature at which a liquid transforms itself into its gas phase is termed as ___ point.
Answer» The temperature at which a liquid transforms itself into its gas phase is termed as ___ point.

Discussion

7967.	An object is placed 25 cm from a plane mirror. Now, the object is brought closer then which of the below is most likely to happen
Answer» An object is placed 25 cm from a plane mirror. Now, the object is brought closer then which of the below is most likely to happen

Discussion

7968.	The air pressure at the sea level is found to be nearly:
Answer» The air pressure at the sea level is found to be nearly:

Discussion

7969.	State the universal law of gravitation. [2 MARKS]
Answer» State the universal law of gravitation. [2 MARKS]

Discussion

7970.	Which of the following are fossil fuels:
Answer» Which of the following are fossil fuels:

Discussion

7971.	How many vocal cords do we have in our throat? (one or more)
Answer» How many vocal cords do we have in our throat? (one or more)

Discussion

7972.	Rods and cones in retina are also called
Answer» Rods and cones in retina are also called

Discussion

7973.	Question 20 (e) Boojho planned an activity to observe an object A through pipes as shown in figure, so that he could see objects which he could not directly see. At each corner a plane mirror is placed at 45 degrees in order to deviate the light rays by 90 degrees. If any of the mirrors is removed, will he be able to see the objects?
Answer» Question 20 (e) Boojho planned an activity to observe an object A through pipes as shown in figure, so that he could see objects which he could not directly see. At each corner a plane mirror is placed at 45 degrees in order to deviate the light rays by 90 degrees. If any of the mirrors is removed, will he be able to see the objects?

7973.

Question 20 (e) Boojho planned an activity to observe an object A through pipes as shown in figure, so that he could see objects which he could not directly see. At each corner a plane mirror is placed at 45 degrees in order to deviate the light rays by 90 degrees. If any of the mirrors is removed, will he be able to see the objects?

Answer»

Question 20 (e)

Boojho planned an activity to observe an object A through pipes as shown in figure, so that he could see objects which he could not directly see. At each corner a plane mirror is placed at 45 degrees in order to deviate the light rays by 90 degrees.

If any of the mirrors is removed, will he be able to see the objects?

Discussion

7974.	Describe an experiment to show that a light ray bends when it passes from one transparent medium into another transparent medium.
Answer» Describe an experiment to show that a light ray bends when it passes from one transparent medium into another transparent medium.

Discussion

7975.	Surface tension of water is due to __________ forces in water molecule.
Answer» Surface tension of water is due to __________ forces in water molecule.

Discussion

7976.	Large volumes of CNG is filled in small cylinders easily due to which property of gases?
Answer» Large volumes of CNG is filled in small cylinders easily due to which property of gases?

Discussion

7977.	Once I suddenly woke up in bed and, by mistake, saw the image of my clock in a plane mirror and panicked that I was late. The time it showed was 8:45. (The clock did not have numbers on it). The correct time was -
Answer» Once I suddenly woke up in bed and, by mistake, saw the image of my clock in a plane mirror and panicked that I was late. The time it showed was 8:45. (The clock did not have numbers on it). The correct time was -

Discussion

7978.	What is the dark side of the moon. Explain this phenomenon. [5 MARKS]
Answer» What is the dark side of the moon. Explain this phenomenon. [5 MARKS]

Discussion

7979.	1.Difference between virtual and real image 2. Application of diffused reflection
Answer» 1.Difference between virtual and real image 2. Application of diffused reflection

Discussion

7980.	Pick the odd one out.
Answer» Pick the odd one out.

Discussion

7981.	Match the following, if a body has intial and final kinetic energies as K.E1 and K.E2 respectively.
Answer» Match the following, if a body has intial and final kinetic energies as $K . E_{1}$ and $K . E_{2}$ respectively.

Discussion

7982.	Name the mirror which forms an erect, virtual and enlarged image of an object. What is the position of object relative to the mirror ?
Answer» Name the mirror which forms an erect, virtual and enlarged image of an object. What is the position of object relative to the mirror ?

Discussion

7983.	Name the hottest planet.
Answer» Name the hottest planet.

Discussion

7984.	Element Identification - Adaptive Flow
Answer» Element Identification - Adaptive Flow

Discussion

7985.	Is there friction between us and the air ?
Answer» Is there friction between us and the air ?

Discussion

7986.	Rohit took a stuyrofoam and rubbed it with paper and brought the styrofoam in contact with the metal disc of the uncharged gold leaf electroscope. What does he observe and why?Then his friend Ratul came and touched the metal disc with his hand. What do they observe then.Explain their observations.
Answer» Rohit took a stuyrofoam and rubbed it with paper and brought the styrofoam in contact with the metal disc of the uncharged gold leaf electroscope. What does he observe and why?Then his friend Ratul came and touched the metal disc with his hand. What do they observe then.Explain their observations.

Discussion

7987.	What are meteors,meteoroids,meteorites,comets and asteroids?
Answer» What are meteors,meteoroids,meteorites,comets and asteroids?

Discussion

7988.	Which of the following will be the correct image formed through a pinhole camera if the object is as shown below?
Answer» Which of the following will be the correct image formed through a pinhole camera if the object is as shown below?

Discussion

7989.	Why doesn't friction act on the rocket when it is launched immediately ?
Answer» Why doesn't friction act on the rocket when it is launched immediately ?

Discussion

7990.	Define in detail good conductor and bad conductor of electricity
Answer» Define in detail good conductor and bad conductor of electricity

Discussion

7991.	Electrostatic force is the phenomenon that results from slow moving or stationary ______________.
Answer» Electrostatic force is the phenomenon that results from slow moving or stationary ______________.

Discussion

7992.	Sodium hydroxide is an example of:
Answer» Sodium hydroxide is an example of:

Discussion

7993.	Which of the following statements is incorrect?
Answer» Which of the following statements is incorrect?

Discussion

7994.	There are two school bags A & B. Bag A is provided with a broader strap, while bag B is provided with a thinner strap. For the same load, a student likes bag A as he is comfortable with it; but with bag B, he develops a pain in his shoulders. This is because:
Answer» There are two school bags A & B. Bag A is provided with a broader strap, while bag B is provided with a thinner strap. For the same load, a student likes bag A as he is comfortable with it; but with bag B, he develops a pain in his shoulders. This is because:

Discussion

7995.	Why the Venus is the brightest planet in our solar system ?
Answer» Why the Venus is the brightest planet in our solar system ?

Discussion

7996.	Which factors contribute to the development of cyclone? [2 MARKS]
Answer» Which factors contribute to the development of cyclone? [2 MARKS]

Discussion

7997.	Question 16 Look at the figure. Can the image of the child in it be obtained on a screen?
Answer» Question 16 Look at the figure. Can the image of the child in it be obtained on a screen?

7997.

Question 16 Look at the figure. Can the image of the child in it be obtained on a screen?

Answer»

Question 16

Look at the figure. Can the image of the child in it be obtained on a screen?

Discussion

7998.	What is tidal locking? Can you please explain it in a simplified way
Answer» What is tidal locking? Can you please explain it in a simplified way

Discussion

7999.	Why does the noes of mountanears bleed at high altitude??
Answer» Why does the noes of mountanears bleed at high altitude??

Discussion

8000.	_________ increases with the increase in OH- ions.
Answer» _________ increases with the increase in OH^- ions.

Discussion

Explore topic-wise InterviewSolutions in .

Can we change the position of the pole star so that southern hemisphere can also see it

Explain the terms boiling and boiling point.

The charge of Mg in MgCl2 is ___

If the potential difference across a conductor is 10 V, 5 A current flows through it. What will be the current if the potential difference is increased to 15 V?

The real expansion of a liquid is always _________.

What is mirage ? Give a reason for its formation.

What effect does an electric current produce when flowing through a conducting liquid (or conducting solution) ?

How many electrons are there in 1 coulomb of charge?

Can mechatronics engineer makes missiles?

Find three natural numbers whose sum and product are equal

What happens when electrodes are immersed in water and a current is passed? Which electrode will wear out faster and why? [3 MARKS]

What happens to the stars during the daytime?

Why it is advised to cut off the power supply and switch off all the electrical appliances at the time of flood?

What is the 'drag' in fluids? [2 MARKS]

The temperature at which a liquid transforms itself into its gas phase is termed as ___ point.

An object is placed 25 cm from a plane mirror. Now, the object is brought closer then which of the below is most likely to happen

The air pressure at the sea level is found to be nearly:

State the universal law of gravitation. [2 MARKS]

Which of the following are fossil fuels:

How many vocal cords do we have in our throat? (one or more)

Rods and cones in retina are also called

Describe an experiment to show that a light ray bends when it passes from one transparent medium into another transparent medium.

Surface tension of water is due to __________ forces in water molecule.

Large volumes of CNG is filled in small cylinders easily due to which property of gases?

Once I suddenly woke up in bed and, by mistake, saw the image of my clock in a plane mirror and panicked that I was late. The time it showed was 8:45. (The clock did not have numbers on it). The correct time was -

What is the dark side of the moon. Explain this phenomenon. [5 MARKS]

1.Difference between virtual and real image 2. Application of diffused reflection

Pick the odd one out.

Match the following, if a body has intial and final kinetic energies as K.E1 and K.E2 respectively.

Name the mirror which forms an erect, virtual and enlarged image of an object. What is the position of object relative to the mirror ?

Name the hottest planet.

Element Identification - Adaptive Flow

Is there friction between us and the air ?

Rohit took a stuyrofoam and rubbed it with paper and brought the styrofoam in contact with the metal disc of the uncharged gold leaf electroscope. What does he observe and why?Then his friend Ratul came and touched the metal disc with his hand. What do they observe then.Explain their observations.

What are meteors,meteoroids,meteorites,comets and asteroids?

Which of the following will be the correct image formed through a pinhole camera if the object is as shown below?

Why doesn't friction act on the rocket when it is launched immediately ?

Define in detail good conductor and bad conductor of electricity

Electrostatic force is the phenomenon that results from slow moving or stationary ______________.

Sodium hydroxide is an example of:

Which of the following statements is incorrect?

There are two school bags A &amp; B. Bag A is provided with a broader strap, while bag B is provided with a thinner strap. For the same load, a student likes bag A as he is comfortable with it; but with bag B, he develops a pain in his shoulders. This is because:

Why the Venus is the brightest planet in our solar system ?

Which factors contribute to the development of cyclone? [2 MARKS]

Question 16 Look at the figure. Can the image of the child in it be obtained on a screen?

What is tidal locking? Can you please explain it in a simplified way

Why does the noes of mountanears bleed at high altitude??

_________ increases with the increase in OH- ions.

There are two school bags A & B. Bag A is provided with a broader strap, while bag B is provided with a thinner strap. For the same load, a student likes bag A as he is comfortable with it; but with bag B, he develops a pain in his shoulders. This is because: