Which of the following has the highest frequency?
A). Cosmic rays
B). Radio waves
C). Radio waves
D). Microwaves
Cosmic rays
The frequency of Gamma rays is the highest. Gamma rays are the highest energy EM radiation and typically have energies greater than 100 keV, frequencies greater than 1019 Hz, and wavelengths less than 10 picometers.
1. Which of the following waves cannot be polarised?
3. Which one among the following doesn't have any effect on velocity of sound ?
4. The length of the pendulum is doubled and the mass of its bob is halved. Its time sperod would
5. Red light is used for signals because it has
6. Which one of the following lenses should be used to correct the defect of astigmatism ?
7. Rate of work done is _______.
8. The magnitude of buoyant force depends on the ________ of the fluid.
9. When a person sitting on a swing stands up on the swing, the frequency of oscillation