Options:
- A. 144000J
- B. 144J
- C. 1.44J
- D. 14J
View Answer
A. 144000J
Physics
Which one of the following properties of light does not change with the nature of the medium ?
Options:
- A. velocity
- B. wavelength
- C. amplitude
- D. frequency
View Answer
D. frequency
Crystals of a material can behave as_________________?
Options:
- A. Convex lens
- B. Interferometer
- C. Diffraction grating
- D. Concave
View Answer
C. Diffraction grating
Gives the definition of metre in terms of wavelength of red cadmium light ___________________?
Options:
- A. Newton
- B. Einstein
- C. Michelson
- D. Galileo
View Answer
C. Michelson