16569 + Interview Questions in Physics Page 327 InterviewSolution

16301.	Name a non-renewable source of energy other than fossil fuels.
Answer» Name a non-renewable source of energy other than fossil fuels.

Discussion

16302.	Electromagnetic force is stronger than gravitational force by a factor of
Answer» Electromagnetic force is stronger than gravitational force by a factor of

Discussion

16303.	A bomb of 12 kg explodes into two pieces of masses 4 kg and 8 kg. The velocity of 8kg mass is 6 m/sec. The kinetic energy of the other mass is
Answer» A bomb of 12 kg explodes into two pieces of masses 4 kg and 8 kg. The velocity of 8kg mass is 6 m/sec. The kinetic energy of the other mass is

16303.

A bomb of 12 kg explodes into two pieces of masses 4 kg and 8 kg. The velocity of 8kg mass is 6 m/sec. The kinetic energy of the other mass is

Answer»

A bomb of 12 kg explodes into two pieces of masses 4 kg and 8 kg. The velocity of 8kg mass is 6 m/sec. The kinetic energy of the other mass is

Discussion

16304.	What are the advantages and disdvantages of using a solar cooker ?
Answer» What are the advantages and disdvantages of using a solar cooker ?

Discussion

16305.	A stone of mass 5 kg is tied to a string of length 4 m. If the stone is swirled around by a boy with a linear speed of 20 m/s, what is the centripetal force acting on the stone?
Answer» A stone of mass 5 kg is tied to a string of length 4 m. If the stone is swirled around by a boy with a linear speed of 20 m/s, what is the centripetal force acting on the stone?

Discussion

16306.	In the adsorption of acetic acid on activated charcoal, the acetic acid is an [MP PET 1994; MP PMT
Answer» In the adsorption of acetic acid on activated charcoal, the acetic acid is an [MP PET 1994; MP PMT

Discussion

16307.	Which of the following has the wavelength less than the visible light?
Answer» Which of the following has the wavelength less than the visible light?

Discussion

16308.	Which among the given radiations has the highest wavelength and can be used for radio and television communications?
Answer» Which among the given radiations has the highest wavelength and can be used for radio and television communications?

Discussion

16309.	Question 29 Draw a ray diagram showing the path of rays of light when it enters with oblique incidence (i) from air into water; (ii) from water into air.
Answer» Question 29 Draw a ray diagram showing the path of rays of light when it enters with oblique incidence (i) from air into water; (ii) from water into air.

Discussion

16310.	Alternating current can not be measured by dc ammeter because[AIEEE 2004]
Answer» Alternating current can not be measured by dc ammeter because [AIEEE 2004]

16310.

Alternating current can not be measured by dc ammeter because[AIEEE 2004]

Answer»

Alternating current can not be measured by dc ammeter because

[AIEEE 2004]

Discussion

16311.	The frequency of damped vibrations remains same (constant )? And what are the "applications " of damped vibrations (as given in the icse syllabus)?
Answer» The frequency of damped vibrations remains same (constant )? And what are the "applications " of damped vibrations (as given in the icse syllabus)?

Discussion

16312.	which formula is used to calculate pottential difference between the ends of the conductor
Answer» which formula is used to calculate pottential difference between the ends of the conductor

Discussion

16313.	1) explain why musical instruments like guitar are provided with hollow box. 2)when a vehicle driven at high speed , sometimes rattling sound is heard. explain why.
Answer» 1) explain why musical instruments like guitar are provided with hollow box. 2)when a vehicle driven at high speed , sometimes rattling sound is heard. explain why.

Discussion

16314.	if we pass the current for a longer time what will happen to the resistance how should we avoid it
Answer» if we pass the current for a longer time what will happen to the resistance how should we avoid it

Discussion

16315.	At what distance from a converging lens of focal length 12 cm must an object be placed in order that an image of magnification 1 will be produced ?
Answer» At what distance from a converging lens of focal length 12 cm must an object be placed in order that an image of magnification 1 will be produced ?

Discussion

16316.	Which among the following cases of applied forces result in forming a couple?
Answer» Which among the following cases of applied forces result in forming a couple?

Discussion

16317.	The force of gravitation between two bodies in the universe does not depend on:
Answer» The force of gravitation between two bodies in the universe does not depend on:

Discussion

16318.	In the case of negative work, the angle between force and displacement is:
Answer» In the case of negative work, the angle between force and displacement is:

Discussion

16319.	Question 1 State the principle of an electric generator.
Answer» Question 1 State the principle of an electric generator.

Discussion

16320.	Explain: a) Electric fuse b) Overloading c) Short circuit [3 MARKS]
Answer» Explain: a) Electric fuse b) Overloading c) Short circuit [3 MARKS]

Discussion

16321.	Calculate the equivalent resistance from the circuit diagram shown below.
Answer» Calculate the equivalent resistance from the circuit diagram shown below.

16321.

Calculate the equivalent resistance from the circuit diagram shown below.

Answer»

Calculate the equivalent resistance from the circuit diagram shown below.

Discussion

16322.	State the S.I. unit of electrical power.
Answer» State the S.I. unit of electrical power.

Discussion

16323.	What is the reason for the occurrence of myopic defect?
Answer» What is the reason for the occurrence of myopic defect?

Discussion

16324.	What will happen to the boiling point of a liquid, when we increase the pressure?
Answer» What will happen to the boiling point of a liquid, when we increase the pressure?

Discussion

16325.	A ray of light, after rerfraction through a concave lens emerges parallel to the principal axis. (a) Draw a ray diagram to show the incident ray when produced meets the principal axis at point F. (b) Name the point F.
Answer» A ray of light, after rerfraction through a concave lens emerges parallel to the principal axis. (a) Draw a ray diagram to show the incident ray when produced meets the principal axis at point F. (b) Name the point F.

Discussion

16326.	On which factors magnetic effect of electric current depends and how?
Answer» On which factors magnetic effect of electric current depends and how?

Discussion

16327.	A ray of light is incident on different media at an angle of 60° as shown in the figure. In which of the following media the speed of light is slowest?
Answer» A ray of light is incident on different media at an angle of 60° as shown in the figure. In which of the following media the speed of light is slowest?

16327.

A ray of light is incident on different media at an angle of 60° as shown in the figure. In which of the following media the speed of light is slowest?

Answer»

A ray of light is incident on different media at an angle of 60° as shown in the figure. In which of the following media the speed of light is slowest?

Discussion

16328.	Refractive index of diamond is 2.42 and that of carbon disulphide is 1.63. Calculate refractive index of diamond with respect to carbon disulphide.
Answer» Refractive index of diamond is 2.42 and that of carbon disulphide is 1.63. Calculate refractive index of diamond with respect to carbon disulphide.

Discussion

16329.	What is the minimum number of rays required for locating the image formed by a concave mirror for an object ? Draw a ray diagram to show the formation of a virtual image by a concave mirror.
Answer» What is the minimum number of rays required for locating the image formed by a concave mirror for an object ? Draw a ray diagram to show the formation of a virtual image by a concave mirror.

Discussion

16330.	Select the most appropriate option for the pH range of acids and bases.
Answer» Select the most appropriate option for the pH range of acids and bases.

Discussion

16331.	Whe pattasium permagnet react with sulphuric acid what is formed
Answer» Whe pattasium permagnet react with sulphuric acid what is formed

Discussion

16332.	Wildlife is important because
Answer» Wildlife is important because

Discussion

16333.	Bending of light when it travels from one medium to another is termed as______.
Answer» Bending of light when it travels from one medium to another is termed as______.

Discussion

16334.	Find the value of sin θglass below: Given nair = 1 nglass = 1.5
Answer» Find the value of ${s i n θ}_{g l a s s}$ below: Given $n_{a i r}$ = 1 $n_{g l a s s}$ = 1.5

16334.

Find the value of sin θglass below: Given nair = 1 nglass = 1.5

Answer»

Find the value of ${s i n θ}_{g l a s s}$ below:

Given $n_{a i r}$ = 1 $n_{g l a s s}$ = 1.5

Discussion

16335.	Which of the following object(s) is/are hot with respect to a human body at room temperature? (i)Base of a frying pan, right after cooking. (ii) Ice cream. (iii) Snow. (iv) Molten wax.
Answer» Which of the following object(s) is/are hot with respect to a human body at room temperature? (i)Base of a frying pan, right after cooking. (ii) Ice cream. (iii) Snow. (iv) Molten wax.

Discussion

16336.	Difference between permanent magnet and electromagnet
Answer» Difference between permanent magnet and electromagnet

Discussion

16337.	Use the following information to answer the next question. A ray is reflected from a plane surface. It makes an angle of 20° with the reflecting surface. What is the angle of incidence?
Answer» Use the following information to answer the next question. A ray is reflected from a plane surface. It makes an angle of 20° with the reflecting surface. What is the angle of incidence?

16337.

Use the following information to answer the next question. A ray is reflected from a plane surface. It makes an angle of 20° with the reflecting surface. What is the angle of incidence?

Answer»

Use the following information to answer the next question.

A ray is reflected from a plane surface. It makes an angle of 20° with the reflecting surface.

What is the angle of incidence?

Discussion

16338.	Exposure of which of the following can be a health hazard
Answer» Exposure of which of the following can be a health hazard

Discussion

16339.	Explain with the aid of a simple diagram, the transmission of electric power from the generating station to your house.
Answer» Explain with the aid of a simple diagram, the transmission of electric power from the generating station to your house.

16339.

Explain with the aid of a simple diagram, the transmission of electric power from the generating station to your house.

Answer»

Explain with the aid of a simple diagram, the transmission of electric power from the generating station to your house.

Discussion

16340.	A system X is neither in thermal equilibrium with Y nor with Z. Then what can we say about the systems Y and Z?
Answer» A system $X$ is neither in thermal equilibrium with $Y$ nor with $Z$ . Then what can we say about the systems $Y$ and $Z$ ?

Discussion

16341.	An object is placed at 30 cm in front of the convex lens of focal length 10 cm. The distance of the image from the lens is + ___ cm.
Answer» An object is placed at 30 cm in front of the convex lens of focal length 10 cm. The distance of the image from the lens is + ___ cm.

Discussion

16342.	What would be the effect on the resistance of a metal wire of: (a) increasing its length? (b) increasing its diameter? (c) increasing its temperature?
Answer» What would be the effect on the resistance of a metal wire of: (a) increasing its length? (b) increasing its diameter? (c) increasing its temperature?

Discussion

16343.	Name four colours of the spectrum of white light which have wavelength longer than blue light.
Answer» Name four colours of the spectrum of white light which have wavelength longer than blue light.

Discussion

16344.	State two uses of a concave mirror.
Answer» State two uses of a concave mirror.

Discussion

16345.	Name the force required for uniform circular motion and state it's direction
Answer» Name the force required for uniform circular motion and state it's direction

Discussion

16346.	How to identify the sign(negative or positive) for a given image distance of a lens or mirror?
Answer» How to identify the sign(negative or positive) for a given image distance of a lens or mirror?

Discussion

16347.	Why time stops inside the black hole....? Which thing is making such a strong gravitational force in the black hole
Answer» Why time stops inside the black hole....? Which thing is making such a strong gravitational force in the black hole

Discussion

16348.	Why the density of air decreases with increase in humidity?
Answer» Why the density of air decreases with increase in humidity?

Discussion

16349.	Which of the following is likely to be the correct wattage for an electric iron used in our homes ? (a) 60 W (b) 250 W (c) 850 W (d) 2000 W
Answer» Which of the following is likely to be the correct wattage for an electric iron used in our homes ? (a) 60 W (b) 250 W (c) 850 W (d) 2000 W

16349.

Which of the following is likely to be the correct wattage for an electric iron used in our homes ? (a) 60 W (b) 250 W (c) 850 W (d) 2000 W

Answer»

Which of the following is likely to be the correct wattage for an electric iron used in our homes ?

(a) 60 W

(b) 250 W

(c) 850 W

(d) 2000 W

Discussion

16350.	Describe with the help of a ray diagram the nature, size and position of the image formed when an object is placed in front of a convex lens between focus and optical centre. State three characteristics of the image formed.
Answer» Describe with the help of a ray diagram the nature, size and position of the image formed when an object is placed in front of a convex lens between focus and optical centre. State three characteristics of the image formed.

Discussion

Explore topic-wise InterviewSolutions in .

Name a non-renewable source of energy other than fossil fuels.

Electromagnetic force is stronger than gravitational force by a factor of

A bomb of 12 kg explodes into two pieces of masses 4 kg and 8 kg. The velocity of 8kg mass is 6 m/sec. The kinetic energy of the other mass is

What are the advantages and disdvantages of using a solar cooker ?

A stone of mass 5 kg is tied to a string of length 4 m. If the stone is swirled around by a boy with a linear speed of 20 m/s, what is the centripetal force acting on the stone?

In the adsorption of acetic acid on activated charcoal, the acetic acid is an [MP PET 1994; MP PMT

Which of the following has the wavelength less than the visible light?

Which among the given radiations has the highest wavelength and can be used for radio and television communications?

Question 29 Draw a ray diagram showing the path of rays of light when it enters with oblique incidence (i) from air into water; (ii) from water into air.

Alternating current can not be measured by dc ammeter because[AIEEE 2004]

The frequency of damped vibrations remains same (constant )? And what are the "applications " of damped vibrations (as given in the icse syllabus)?

which formula is used to calculate pottential difference between the ends of the conductor

1) explain why musical instruments like guitar are provided with hollow box. 2)when a vehicle driven at high speed , sometimes rattling sound is heard. explain why.

if we pass the current for a longer time what will happen to the resistance how should we avoid it

At what distance from a converging lens of focal length 12 cm must an object be placed in order that an image of magnification 1 will be produced ?

Which among the following cases of applied forces result in forming a couple?

The force of gravitation between two bodies in the universe does not depend on:

In the case of negative work, the angle between force and displacement is:

Question 1 State the principle of an electric generator.

Explain: a) Electric fuse b) Overloading c) Short circuit [3 MARKS]

Calculate the equivalent resistance from the circuit diagram shown below.

State the S.I. unit of electrical power.

What is the reason for the occurrence of myopic defect?

What will happen to the boiling point of a liquid, when we increase the pressure?

A ray of light, after rerfraction through a concave lens emerges parallel to the principal axis. (a) Draw a ray diagram to show the incident ray when produced meets the principal axis at point F. (b) Name the point F.

On which factors magnetic effect of electric current depends and how?

A ray of light is incident on different media at an angle of 60° as shown in the figure. In which of the following media the speed of light is slowest?

Refractive index of diamond is 2.42 and that of carbon disulphide is 1.63. Calculate refractive index of diamond with respect to carbon disulphide.

What is the minimum number of rays required for locating the image formed by a concave mirror for an object ? Draw a ray diagram to show the formation of a virtual image by a concave mirror.

Select the most appropriate option for the pH range of acids and bases.

Whe pattasium permagnet react with sulphuric acid what is formed

Wildlife is important because

Bending of light when it travels from one medium to another is termed as______.

Find the value of sin θglass below: Given nair = 1 nglass = 1.5

Which of the following object(s) is/are hot with respect to a human body at room temperature? (i)Base of a frying pan, right after cooking. (ii) Ice cream. (iii) Snow. (iv) Molten wax.

Difference between permanent magnet and electromagnet

Use the following information to answer the next question. A ray is reflected from a plane surface. It makes an angle of 20° with the reflecting surface. What is the angle of incidence?

Exposure of which of the following can be a health hazard

Explain with the aid of a simple diagram, the transmission of electric power from the generating station to your house.

A system X is neither in thermal equilibrium with Y nor with Z. Then what can we say about the systems Y and Z?

An object is placed at 30 cm in front of the convex lens of focal length 10 cm. The distance of the image from the lens is + ___ cm.

What would be the effect on the resistance of a metal wire of: (a) increasing its length? (b) increasing its diameter? (c) increasing its temperature?

Name four colours of the spectrum of white light which have wavelength longer than blue light.

State two uses of a concave mirror.

Name the force required for uniform circular motion and state it's direction

How to identify the sign(negative or positive) for a given image distance of a lens or mirror?

Why time stops inside the black hole....? Which thing is making such a strong gravitational force in the black hole

Why the density of air decreases with increase in humidity?

Which of the following is likely to be the correct wattage for an electric iron used in our homes ? (a) 60 W (b) 250 W (c) 850 W (d) 2000 W

Describe with the help of a ray diagram the nature, size and position of the image formed when an object is placed in front of a convex lens between focus and optical centre. State three characteristics of the image formed.