Modern Physics

Question 1

Energy of on photon in A. And nm also

Answer 1

E= hc/lemda

Question 2

Speed of photon

Answer 2

Light ke gati se

Question 3

Mass of photon at rest

Answer 3

0

Question 4

Power of monochromatic source in terms of photoelectric effect

Answer 4

No. Of photon x Energy of one photon

Question 5

What is intensity?

Answer 5

.Power per unit area
.E/At

Question 6

Intensity formula for a closed sphere

Answer 6

P/4piersquare

Question 7

Relation between Intensity And Radius of the Light object

Answer 7

I is indirectly proportional to R square

Question 8

I relation with r in parallel beam

Answer 8

I is directly proportional to r

Question 9

De broglie wavelength

Answer 9

H/momentum

Question 10

Write momentum in terms of other

Answer 10

Under root 2m into kinetic energy

Question 11

Momentum in terms of potential

Answer 11

Q∆V

Question 12

Kinetic energy in terms of Potential difference

Answer 12

Q∆V

Question 13

Energy of one Photon in terms of frequency

Answer 13

E= HU

Question 14

What is meu in energy of photon

Answer 14

Threshold frequency

Question 15

What is work function? ¢

Answer 15

Minimum energy photon nikalne ke liye

Question 16

What is maximum kinetic energy in photoelectric effect?

Answer 16

KE Max = E-¢

Question 17

What is V.

Answer 17

KE Max/ e