The frequency of light ray having the wavelength 3000Å is
The frequency of light ray having the wavelength 3000Å is Options (a) 9x10¹³ cycle/sec (b) 10¹⁵ cycle/sec (c) 90 cycle/sec…
7 years ago
Physics
When one of the slits of Young’s experiment is covered with a transport sheet
When one of the slits of Young's experiment is covered with a transport sheet of thickness 4.8 mm, the central…
7 years ago
The coherence of two light sources means that the light waves emitted have
The coherence of two light sources means that the light waves emitted have Options (a) Same frequency (b) Same intensity…
7 years ago
Huygen’s principle of secondary wavelets may be used to
Huygen's principle of secondary wavelets may be used to Options (a) Find the velocity of light in vacuum (b) Explain…
7 years ago
Two coherent sources of different intensities send waves which interfere.
Two coherent sources of different intensities send waves which interfere. The ratio of maximum intensity to minimum intensity is 25:1.…
7 years ago
Light propagates rectilinearly because of its
Light propagates rectilinearly because of its Options (a) Frequency (b) Wavelength (c) Velocity (d) Wave nature Correct Answer: Wavelength Explanation:…
7 years ago
If light emitted from sodium bulb is passed through sodium vapour,
If light emitted from sodium bulb is passed through sodium vapour, then we can get from emergent light Options (a)…
7 years ago
180⁰ phase difference is obtained when light ray is reflected from
180⁰ phase difference is obtained when light ray is reflected from Options (a) Air to glass (b) Glass to air…
7 years ago
What is the time taken by moon light to reach earth?
What is the time taken by moon light to reach earth? Options (a) 8 sec (b) 10 sec (c) 9…
7 years ago
Time taken by light to cross a glass slab of thickness 4 mm and refractive index 3 is
Time taken by light to cross a glass slab of thickness 4 mm and refractive index 3 is Options (a)…
7 years ago