Which one of the following statements with regard to the ultraviolet light is not correct?

Which one of the following statements about X-rays is not true ?

With reference to the first-man made Ruby Laser, which of the following statement/s is/are correct? (1) Ruby Laser produced pulses of blue light. (2) Ruby Laser produced pulses of red light. Select t…

Which one of the following is not a property of the X-rays?

Which one of the following wavelengths corresponds to the wavelength of X-rays?

Which one of the following optical phenomena supports that the light is a transverse wave?