Television viewers using dish antenna to receive satellite signals do not receive signals during rain because : 1. of small size of antenna. 2. rain droplets absorb the energy of radio waves. 3. rain droplets disperse the energy of radio waves from their original direction. Which of the above statements are correct?

A photon of X-ray has energy of 1 keV. A photon of visible radiation has energy of 3 eV. In this context, which one of the following statements is not correct?

Infrared, visible and ultraviolet radiations/light have different properties. Which one of the following statements related to these radiations/light is not correct?

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…

Arrange the following electromagnetic radiations in increasing order of their wavelength: 1. X-rays 2. Ultraviolet rays 3. Infrared rays 4. Radio waves Select the answer using the code given below:

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