Dual Nature of Radiation and matter

Question 1

Variation of photocurrent with intensity graph

Answer 1

directly prop

Question 2

Variation of photocurrent with potential graph

Answer 2

increases from -ve x axis and reaches saturation point

Question 3

Collector plate is

Answer 3

+ve with respect to ammeter
-ve with respect to ammeter

Question 4

With increase in -ve potential, photoelectric current

Answer 4

decreases until it reaches 0

Question 5

Stopping potential/cut off potential

Answer 5

Minimum -ve potential Vo for which photocurrent becomes 0

Question 6

K(max)

Answer 6

eVo

Question 7

Stopping potential is independant of

Answer 7

intensity

Question 8

Stopping potential is dependant on

Answer 8

Frequency of incident radiation, material of emitter plate

Question 9

Photocurrent with stopping potential graph

Answer 9

increases from -ve x axis(Vo) for 3 intensities and reaches saturation point

Question 10

Variation of photocurrent with frequency graph

Answer 10

3 -ve stopping potentials increasing and reaching a common saturation point

Question 11

Photocurrent is independant of

Answer 11

frequency

Question 12

Stopping potential with frequency graph

Answer 12

Increases from a dist on x axis

Question 13

Threshold freq varies with

Answer 13

metals

Question 14

When hν > Φo

Answer 14

photoelectic effect occurs

Question 15

hν =

Answer 15

Φo + K(max)

Question 16

When hν = Φo

Answer 16

K.E = 0