The energy radiated is directly proportional to the fourth power of Kelvins temperature is________________?

Related Mcqs:

The relativistic energy E is equivalent to relativistic mass given by_______________?

A. Ec2 B. E/c2 C. E/c D. c2/E...

Rest mass of a photon is________________?

A. infinite B. zero C. very small D. 1.67 x 10-27 kg...

Einstein’s photoelectric equation is given by_______________?

A. 1/2 mvmax2=hf+Φ B. 1/2 mvmax2-hf = Φ C. 1/2 mvmax2=hf-Φ D. All of above are correct...

In an electron microscope, we use energetic particles because of______________?

A. Penetrating power is high B. Kinetic energy is large C. Wavelength is very short D. All the above reasons...

In the electron microscope, electric & magnetic fields are used as_______________?

A. Electromagnetic gun B. Source of electromagnetic waves C. Deflecting charged particle D. Converging source of electrons...