AIEEE 2007 | Dual Nature of Radiation Question 160 | Physics | JEE Main - ExamSIDE.com

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1

AIEEE 2007

MCQ (Single Correct Answer)

+4

-1

Photon of frequency $$v$$ has a momentum associated with it. If $$c$$ is the velocity of light, the momentum is

A

$$hv/c$$

B

$$v/c$$

C

$$h$$ $$v$$ $$c$$

D

$$hv/{c^2}$$

2

AIEEE 2006

MCQ (Single Correct Answer)

+4

-1

The threshold frequency for a metallic surface corresponds to an energy of $$6.2$$ $$eV$$ and the stopping potential for a radiation incident on this surface is $$5V.$$ The incident radiation lies in

A

ultra-violet region

B

infra-red region

C

visible region

D

$$x$$-ray region

3

AIEEE 2006

MCQ (Single Correct Answer)

+4

-1

The time taken by a photoelectron to come out after the photon strikes is approximately

A

$${10^{ - 4}}\,s$$

B

$${10^{ - 10}}\,s$$

C

$${10^{ - 16}}\,s$$

D

$${10^{ - 1}}\,s$$

4

AIEEE 2006

MCQ (Single Correct Answer)

+4

-1

The anode voltage of a photocell is kept fixed. The wavelength $$\lambda $$ of the light falling on the cathode is gradually changed. The plate current $${\rm I}$$ of the photocell varies as follows

A

AIEEE 2006 Physics - Dual Nature of Radiation Question 154 English Option 1

B

AIEEE 2006 Physics - Dual Nature of Radiation Question 154 English Option 2

C

AIEEE 2006 Physics - Dual Nature of Radiation Question 154 English Option 3

D

AIEEE 2006 Physics - Dual Nature of Radiation Question 154 English Option 4

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