9478 + Interview Questions in Physics Page 144 InterviewSolution

7151.	Answer in short? Immersion rods for heating liquids are made up of metallic substances?
Answer» Answer in short? Immersion rods for heating liquids are made up of metallic substances?

7151.

Answer in short? Immersion rods for heating liquids are made up of metallic substances?

Answer»

Answer in short?

Immersion rods for heating liquids are made up of metallic substances?

7152.	Define reflection and kaleidoscope.
Answer» Define reflection and kaleidoscope.

Discussion

7153.	A constant force of 100 Newton acts on a body for changing its momentum. The change of momentum of the body is ___________newton second
Answer» A constant force of 100 Newton acts on a body for changing its momentum. The change of momentum of the body is ___________newton second

Discussion

7154.	A bullet of mass 40 g has its kinetic energy equal to 200 J. Then the speed of the bullet is___ ms−1
Answer» A bullet of mass $40 g$ has its kinetic energy equal to $200 J$ . Then the speed of the bullet is___ $m s^{- 1}$

Discussion

7155.	A steel Can is floating on the surface of the water with some part submerged inside the water. If someone pushes the Can downward, which of the following will describe the reaction of the applied force?
Answer» A steel Can is floating on the surface of the water with some part submerged inside the water. If someone pushes the Can downward, which of the following will describe the reaction of the applied force?

7155.

A steel Can is floating on the surface of the water with some part submerged inside the water. If someone pushes the Can downward, which of the following will describe the reaction of the applied force?

Answer»

A steel Can is floating on the surface of the water with some part submerged inside the water. If someone pushes the Can downward, which of the following will describe the reaction of the applied force?

Discussion

7156.	A man is sitting in a train which is moving. The man is
Answer» A man is sitting in a train which is moving. The man is

Discussion

7157.	Suppose you have three bodies A, B and C. A and B are at same temperature. When B and C are brought in contact, heat flows from C to B until they are at same temperature. What will happen when A and C are brought in contact?
Answer» Suppose you have three bodies A, B and C. A and B are at same temperature. When B and C are brought in contact, heat flows from C to B until they are at same temperature. What will happen when A and C are brought in contact?

Discussion

7158.	The atmospheric pressure is usually measured in the unit of : (a) newtons per square metre (b) Pascal (c) cm of mercury (d) mm of mercury
Answer» The atmospheric pressure is usually measured in the unit of : (a) newtons per square metre (b) Pascal (c) cm of mercury (d) mm of mercury

Discussion

7159.	Which is the largest planet of our solar system?
Answer» Which is the largest planet of our solar system?

Discussion

7160.	Electromagnetic radiation consists of electromagnetic waves, which are _____.
Answer» Electromagnetic radiation consists of electromagnetic waves, which are _____.

Discussion

7161.	Which of the following option correctly differentiates between evaporation and boiling?
Answer» Which of the following option correctly differentiates between evaporation and boiling?

Discussion

7162.	The waves generated by the earthquake tremors are called: (a) ultrasonic waves (b) rhythmic waves (c) systemic waves (d) seismic waves
Answer» The waves generated by the earthquake tremors are called: (a) ultrasonic waves (b) rhythmic waves (c) systemic waves (d) seismic waves

7162.

The waves generated by the earthquake tremors are called: (a) ultrasonic waves (b) rhythmic waves (c) systemic waves (d) seismic waves

Answer»

The waves generated by the earthquake tremors are called:

(a) ultrasonic waves (b) rhythmic waves (c) systemic waves (d) seismic waves

Discussion

7163.	The potential difference between two points is 35V and the resistance of the wire connecting the two points is 35Ω. The current in the circuit is ___ A.
Answer» The potential difference between two points is 35V and the resistance of the wire connecting the two points is $35 Ω$ . The current in the circuit is ___ A.

Discussion

7164.	A metallic syringe is taken with its piston at the mid position. The space inside is filled up with air. Now we seal its open end and heat it. Select the most appropriate observation.
Answer» A metallic syringe is taken with its piston at the mid position. The space inside is filled up with air. Now we seal its open end and heat it. Select the most appropriate observation.

Discussion

7165.	Does a parallel universe exist? If yes , approximately how far will it be from our planet?
Answer» Does a parallel universe exist? If yes , approximately how far will it be from our planet?

Discussion

7166.	A Pendulum makes 400 oscillations in 10 seconds. Calculate the frequency and time period of oscillation of the pendulum in milliseconds. [2 MARKS]
Answer» A Pendulum makes 400 oscillations in 10 seconds. Calculate the frequency and time period of oscillation of the pendulum in milliseconds. [2 MARKS]

Discussion

7167.	Write the unit of measurments for the following : Amplitude Time period
Answer» Write the unit of measurments for the following : Amplitude Time period

Discussion

7168.	A given quantity of a liquid is heated. Which of the following quantity will vary and how? (a) mass (b) volume and (c) density.
Answer» A given quantity of a liquid is heated. Which of the following quantity will vary and how? (a) mass (b) volume and (c) density.

7168.

A given quantity of a liquid is heated. Which of the following quantity will vary and how? (a) mass (b) volume and (c) density.

Answer»

A given quantity of a liquid is heated. Which of the following quantity will vary and how?

(a) mass (b) volume and (c) density.

Discussion

7169.	A body has a weight 50 N in air. After immersing completely in liquid it's weight is 20 N. Then the buoyant force on the body will be
Answer» A body has a weight 50 N in air. After immersing completely in liquid it's weight is 20 N. Then the buoyant force on the body will be

Discussion

7170.	On which of the following factors does the shrillness of the sound wave depend?
Answer» On which of the following factors does the shrillness of the sound wave depend?

Discussion

7171.	If the frequency of sound A is greater than sound B then what can we say about the pitch of both sounds?
Answer» If the frequency of sound A is greater than sound B then what can we say about the pitch of both sounds?

Discussion

7172.	Boiling takes place from:
Answer» Boiling takes place from:

Discussion

7173.	The given diagram shows two bar magnets suspended with the help of silk thread. What will be the patterns of magnetic lines of force in this situation?
Answer» The given diagram shows two bar magnets suspended with the help of silk thread. What will be the patterns of magnetic lines of force in this situation?

Discussion

7174.	Where does the sound go after being produced?
Answer» Where does the sound go after being produced?

Discussion

7175.	Name any two celestial objects which we can see easily in the night sky.
Answer» Name any two celestial objects which we can see easily in the night sky.

Discussion

7176.	M.F. Hussain was working one of his masterpieces. His young son walks up to him and proudly explains, "Dad, did you know paint works on the basis of adsorption?" Hussain: "Oh, really? Can you tell me how?" What was his son's reply?
Answer» M.F. Hussain was working one of his masterpieces. His young son walks up to him and proudly explains, "Dad, did you know paint works on the basis of adsorption?" Hussain: "Oh, really? Can you tell me how?" What was his son's reply?

Discussion

7177.	The thickness of a dozen coins on a metre scale was found to be 24 cm. What is the thickness of one coin (in mm)?20
Answer» The thickness of a dozen coins on a metre scale was found to be $24 c m$ . What is the thickness of one coin (in $m m$ )? 20

Discussion

7178.	Milk has a density of 1.03 g/ml at 25∘C and 1 atm pressure. Calculate the mass of 1 litre of milk.
Answer» Milk has a density of $1.03 g / m l$ at $25^{\circ} C$ and $1 a t m p r e s s u r e$ . Calculate the mass of $1 l i t r e$ of milk.

Discussion

7179.	Find the work done to transfer 1019 charge from point A to B which is maintained at a potential difference of 5 volts.
Answer» Find the work done to transfer $10^{19}$ charge from point A to B which is maintained at a potential difference of 5 volts.

Discussion

7180.	What are the harms of noise pollution?
Answer» What are the harms of noise pollution?

Discussion

7181.	Why is cooling produced on evaporation of a liquid?
Answer» Why is cooling produced on evaporation of a liquid?

Discussion

7182.	What is the net charge on an atom?
Answer» What is the net charge on an atom?

Discussion

7183.	What is the angle of reflection when a ray of light is incident normally on a plane mirror?
Answer» What is the angle of reflection when a ray of light is incident normally on a plane mirror?

Discussion

7184.	How are the two plane mirrors in a periscope arranged: (a) with respect to one another? (b) with respect to sides of the tube?
Answer» How are the two plane mirrors in a periscope arranged: (a) with respect to one another? (b) with respect to sides of the tube?

7184.

How are the two plane mirrors in a periscope arranged: (a) with respect to one another? (b) with respect to sides of the tube?

Answer»

How are the two plane mirrors in a periscope arranged:

(a) with respect to one another?

(b) with respect to sides of the tube?

Discussion

7185.	A book is lying on the horizontal table top. If we tilt the table a little, then the book starts sliding down slowly. This happens because: (a) sliding friction is greater than static friction (b) sliding friction is less than force of gravity (c) static friction is greater than sliding friction (d) force of gravity is less than sliding friction
Answer» A book is lying on the horizontal table top. If we tilt the table a little, then the book starts sliding down slowly. This happens because: (a) sliding friction is greater than static friction (b) sliding friction is less than force of gravity (c) static friction is greater than sliding friction (d) force of gravity is less than sliding friction

Discussion

7186.	A lever work on the principle of
Answer» A lever work on the principle of

Discussion

7187.	Question 18 Identify the lightning conductor and the copper plate in the figure.
Answer» Question 18 Identify the lightning conductor and the copper plate in the figure.

7187.

Question 18 Identify the lightning conductor and the copper plate in the figure.

Answer»

Question 18

Identify the lightning conductor and the copper plate in the figure.

Discussion

7188.	The magnitude of force is expressed in the unit of force called : (a) pascal (b) kelvin (c) newton (d) magdeburg
Answer» The magnitude of force is expressed in the unit of force called : (a) pascal (b) kelvin (c) newton (d) magdeburg

Discussion

7189.	What do you think will happen if you drop a plain paper and a crumpled sheet from a same height . Which will come frist to the ground and why
Answer» What do you think will happen if you drop a plain paper and a crumpled sheet from a same height . Which will come frist to the ground and why

Discussion

7190.	Name the charge carriers when electricity flows through A) A Metal B) An Electrolyte
Answer» Name the charge carriers when electricity flows through A) A Metal B) An Electrolyte

7190.

Name the charge carriers when electricity flows through A) A Metal B) An Electrolyte

Answer»

Name the charge carriers when electricity flows through

A) A Metal

B) An Electrolyte

Discussion

7191.	An inflated rubber balloon is rubbed with a woollen cloth whereas a ballpoint pen refill is rubbed with a polythene bag. Which of these will get positively charged? A. Inflated rubber balloon B. Woollen cloth C. Ballpoint pen refill D. Polythene bag (a) A and B (b) B and C (c) A and D (d) B and D
Answer» An inflated rubber balloon is rubbed with a woollen cloth whereas a ballpoint pen refill is rubbed with a polythene bag. Which of these will get positively charged? A. Inflated rubber balloon B. Woollen cloth C. Ballpoint pen refill D. Polythene bag (a) A and B (b) B and C (c) A and D (d) B and D

7191.

An inflated rubber balloon is rubbed with a woollen cloth whereas a ballpoint pen refill is rubbed with a polythene bag. Which of these will get positively charged? A. Inflated rubber balloon B. Woollen cloth C. Ballpoint pen refill D. Polythene bag (a) A and B (b) B and C (c) A and D (d) B and D

Answer»

An inflated rubber balloon is rubbed with a woollen cloth whereas a ballpoint pen refill is rubbed with a polythene bag. Which of these will get positively charged?

A. Inflated rubber balloon B. Woollen cloth C. Ballpoint pen refill D. Polythene bag

(a) A and B (b) B and C (c) A and D (d) B and D

Discussion

7192.	Why the ray of sun does not go outside of our galaxy?
Answer» Why the ray of sun does not go outside of our galaxy?

Discussion

7193.	Which planet is called twin planet of earth? How.
Answer» Which planet is called twin planet of earth? How.

Discussion

7194.	A man sharpens his knife. Which of these statements describes the properties of friction that are observed in the situation? A. Friction helps to induce magnetism B. Friction acts in the opposite direction of relative motion. C. Friction causes the surfaces in contact to wear away. D. Friction produces heat energy.
Answer» A man sharpens his knife. Which of these statements describes the properties of friction that are observed in the situation? A. Friction helps to induce magnetism B. Friction acts in the opposite direction of relative motion. C. Friction causes the surfaces in contact to wear away. D. Friction produces heat energy.

Discussion

7195.	Can we change the climatic conditions of any planet by the use of machines which applies pressure on opposite parts of the earth?
Answer» Can we change the climatic conditions of any planet by the use of machines which applies pressure on opposite parts of the earth?

Discussion

7196.	If a window in a jet plane breaks due to an accident. What will happen?
Answer» If a window in a jet plane breaks due to an accident. What will happen?

Discussion

7197.	Infrasonic vibrations can be heard by which animals and can be produced by whom?
Answer» Infrasonic vibrations can be heard by which animals and can be produced by whom?

Discussion

7198.	Why does sound wave travel the fastest in solids?
Answer» Why does sound wave travel the fastest in solids?

Discussion

7199.	Question 1 (c) Fill in the blank: Image formed by a __________ mirror is always of the same size as that of the object.
Answer» Question 1 (c) Fill in the blank: Image formed by a __________ mirror is always of the same size as that of the object.

Discussion

7200.	What happens to the tail of a comet when it moves far away from the sun ?
Answer» What happens to the tail of a comet when it moves far away from the sun ?

Discussion

Explore topic-wise InterviewSolutions in .

Answer in short? Immersion rods for heating liquids are made up of metallic substances?

Define reflection and kaleidoscope.

A constant force of 100 Newton acts on a body for changing its momentum. The change of momentum of the body is ___________newton second

A bullet of mass 40 g has its kinetic energy equal to 200 J. Then the speed of the bullet is___ ms−1

A steel Can is floating on the surface of the water with some part submerged inside the water. If someone pushes the Can downward, which of the following will describe the reaction of the applied force?

A man is sitting in a train which is moving. The man is

Suppose you have three bodies A, B and C. A and B are at same temperature. When B and C are brought in contact, heat flows from C to B until they are at same temperature. What will happen when A and C are brought in contact?

The atmospheric pressure is usually measured in the unit of : (a) newtons per square metre (b) Pascal (c) cm of mercury (d) mm of mercury

Which is the largest planet of our solar system?

Electromagnetic radiation consists of electromagnetic waves, which are _____.

Which of the following option correctly differentiates between evaporation and boiling?

The waves generated by the earthquake tremors are called: (a) ultrasonic waves (b) rhythmic waves (c) systemic waves (d) seismic waves

The potential difference between two points is 35V and the resistance of the wire connecting the two points is 35Ω. The current in the circuit is ___ A.

A metallic syringe is taken with its piston at the mid position. The space inside is filled up with air. Now we seal its open end and heat it. Select the most appropriate observation.

Does a parallel universe exist? If yes , approximately how far will it be from our planet?

A Pendulum makes 400 oscillations in 10 seconds. Calculate the frequency and time period of oscillation of the pendulum in milliseconds. [2 MARKS]

Write the unit of measurments for the following : Amplitude Time period

A given quantity of a liquid is heated. Which of the following quantity will vary and how? (a) mass (b) volume and (c) density.

A body has a weight 50 N in air. After immersing completely in liquid it's weight is 20 N. Then the buoyant force on the body will be

On which of the following factors does the shrillness of the sound wave depend?

If the frequency of sound A is greater than sound B then what can we say about the pitch of both sounds?

Boiling takes place from:

The given diagram shows two bar magnets suspended with the help of silk thread. What will be the patterns of magnetic lines of force in this situation?​

Where does the sound go after being produced?

Name any two celestial objects which we can see easily in the night sky.

M.F. Hussain was working one of his masterpieces. His young son walks up to him and proudly explains, "Dad, did you know paint works on the basis of adsorption?" Hussain: "Oh, really? Can you tell me how?" What was his son's reply?

The thickness of a dozen coins on a metre scale was found to be 24 cm. What is the thickness of one coin (in mm)?20

Milk has a density of 1.03 g/ml at 25∘C and 1 atm pressure. Calculate the mass of 1 litre of milk.

Find the work done to transfer 1019 charge from point A to B which is maintained at a potential difference of 5 volts.

What are the harms of noise pollution?

Why is cooling produced on evaporation of a liquid?

What is the net charge on an atom?

What is the angle of reflection when a ray of light is incident normally on a plane mirror?

How are the two plane mirrors in a periscope arranged: (a) with respect to one another? (b) with respect to sides of the tube?

A lever work on the principle of

Question 18 Identify the lightning conductor and the copper plate in the figure.

The magnitude of force is expressed in the unit of force called : (a) pascal (b) kelvin (c) newton (d) magdeburg

What do you think will happen if you drop a plain paper and a crumpled sheet from a same height . Which will come frist to the ground and why

Name the charge carriers when electricity flows through A) A Metal B) An Electrolyte

An inflated rubber balloon is rubbed with a woollen cloth whereas a ballpoint pen refill is rubbed with a polythene bag. Which of these will get positively charged? A. Inflated rubber balloon B. Woollen cloth C. Ballpoint pen refill D. Polythene bag (a) A and B (b) B and C (c) A and D (d) B and D

Why the ray of sun does not go outside of our galaxy?

Which planet is called twin planet of earth? How.

Can we change the climatic conditions of any planet by the use of machines which applies pressure on opposite parts of the earth?

If a window in a jet plane breaks due to an accident. What will happen?

Infrasonic vibrations can be heard by which animals and can be produced by whom?

Why does sound wave travel the fastest in solids?

Question 1 (c) Fill in the blank: Image formed by a __________ mirror is always of the same size as that of the object.

What happens to the tail of a comet when it moves far away from the sun ?

The given diagram shows two bar magnets suspended with the help of silk thread. What will be the patterns of magnetic lines of force in this situation?