Cathode rays when obstructed by metal cause emission of -

Related MCQs

• Radio waves, microwaves, infra-red spectrum, ultraviolet rays, X-rays and gamma rays are classified as ______.
• The damage of the human body due to radiation (X-rays or y-rays etc,) is measured in –
• For photoelectric effect to take place, the metal used as the cathode should have –
• Gamma rays can cause –
• A metal ball and a rubber ball, both having the same mass, strike a wall normally with the same velocity. The rubber ball rebounds and the metal ball does not rebound. It can be concluded that –
• Hydrogen atom is excited from ground state to another state with principal quantum number equal to 4. Then the number of spectral lines in the emission spectra will be -
• The reverse effect of X-ray emission is
• Gamma rays have greatest similarity with –
• In the absence of ozone layer, Which rays will enter into atmosphere?
• Energy of Ultraviolet rays is great than