## Phenomenon of photoelectric effect?, Physics

Assignment Help:

A radiation of 500nm is incident on a metal surface whose work function is 3ev.why do we not observe the phenomenon of photoelectric effect?

Ans) Because the energy of radiation is 2.44 ev which is less than workfunction of the metal.so energy more than 3ev can eject electrons and show photoelectric effect

#### Whst is reynold’s number, According to Reynolds, the critical velocity (vc)...

According to Reynolds, the critical velocity (vc) of a liquid flowing by a long narrow tube is (a) Directly linked to the coefficient of viscosity of the liquid. (b) Inversel

#### Motion, one coin is thrown upword from 100m top building with velocity 15m/...

one coin is thrown upword from 100m top building with velocity 15m/s .2s later 2nd coin is dropped downword at what distance from top of building 2nd coin cross first? Ans) They

#### Determine grating element in specturm, A beam of light of wavelength λ = ...

A beam of light of wavelength λ = 5000Å falling normally on a plane diffraction grating. The 1 st order spectrum is derived in a direction making an angle θ 1 with the norma

#### Vectors, The resultant of two forces 3P and 2P is R. If the first force is ...

The resultant of two forces 3P and 2P is R. If the first force is doubled then the resultant is also doubled. then the angle between the two forces us. plz xplain with the solution

#### Determine the maximum value of magnetic intensity, The maximum value of ele...

The maximum value of electric field in an electromagnetic wave is 800V/m. Determine the maximum value of magnetic intensity and the average value of pointing vector.

#### Motion in one dimension, A tortoise can run with a speed of 0.12 m/s, and a...

A tortoise can run with a speed of 0.12 m/s, and a hare can run 20 times as fast. In a race, they both start at the same time, but the hare stops to rest for 4.0 minutes. The torto

insyrumentation

#### Kinematics, the difference and examples of kinematic in one dimension from ...

the difference and examples of kinematic in one dimension from two dimension?

#### Explain di - electric, Di - Electric: The insulator used among the plat...

Di - Electric: The insulator used among the plates of a capacitor is known as Di-electric.

#### DIGITAL SIGNAL PROCESSING, REALIZE THE FOLLOWING FIR SYSTEM IN CASCADE FORM...

REALIZE THE FOLLOWING FIR SYSTEM IN CASCADE FORM REALIZATION  