Laser light is considered to be coherant because it consists of
Laser light is considered to be coherant because it consists of Options (a) many wavelengths (b) uncoordinated wavelength (c) coordinated…
7 years ago
Physics
The moment of inertia of a semicircular ring about the centre is
The moment of inertia of a semicircular ring about the centre is Options (a) MR² (b) MR² / 2 (c)…
7 years ago
In a uniform circular motion, work done in one complete rotation is
In a uniform circular motion, work done in one complete rotation is Options (a) finite and positive (b) zero (c)…
7 years ago
Which component of electromagnetic spectrum have maximum wavelength?
Which component of electromagnetic spectrum have maximum wavelength? Options (a) Radio waves (b) Visible Spectrum (c) Gamma rays (d) X-…
7 years ago
Ratio of the radii of the nuclei with mass numbers 8 and 27 would be
Ratio of the radii of the nuclei with mass numbers 8 and 27 would be Options (a) 27 / 8…
7 years ago
If (range)² is 48 times (maximum height)², then angle of projection is
If (range)² is 48 times (maximum height)², then angle of projection is Options (a) 45° (b) 60° (c) 75° (d)…
7 years ago
What is the amount of energy released by deuterium and tritium fusion?
What is the amount of energy released by deuterium and tritium fusion? Options (a) 60.6 eV (b) 12.6 eV (c)…
7 years ago
All components of the electromagnetic spectrum in vacuum have the same
All components of the electromagnetic spectrum in vacuum have the same Options (a) Energy (b) Velocity (c) Wavelength (d) Frequency…
7 years ago
In a pure capacitive A.C circuit, current and voltage differ in phase by
In a pure capacitive A.C circuit, current and voltage differ in phase by Options (a) 0° (b) 45° (c) 90°…
7 years ago
If the unit of force and length are doubled, then unit of energy will be
If the unit of force and length are doubled, then unit of energy will be Options (a) same (b) 2…
7 years ago