The refracting angle of a prism is A and refractive index of the material of the prism
The refracting angle of a prism is A and refractive index of the material of the prism is cot (A/2).…
7 years ago
Ray Optics
The angle of a prism is A. One of its refracting surfaces is silvered
The angle of a prism is A. One of its refracting surfaces is silvered. Light rays falling at an angle…
7 years ago
If the focal length of objective lens is increased, then magnifying power of
If the focal length of objective lens is increased, then magnifying power of Options (a) microscope will increase but that…
7 years ago
A thin glass(refractive index 1.5) lens has optical power of -5D in air.
A thin glass(refractive index 1.5) lens has optical power of -5D in air. Its optical power in a liquid medium…
7 years ago
An air bubble in a glass slab with refractive index 1.5 (near normal incidence)
An air bubble in a glass slab with refractive index 1.5 (near normal incidence) is 5 cm deep when viewed…
7 years ago
Two thin lenses when placed in contact, then the power of combination is +10 D.
Two thin lenses when placed in contact, then the power of combination is +10 D. If they are kept 0.25…
7 years ago
The mirrors are inclined at an angle of 50⁰. The number of images formed for an object
The mirrors are inclined at an angle of 50⁰. The number of images formed for an object placed in between…
7 years ago
The speed of light in media M₁ and M₂ are 1.5×10⁸ ms⁻¹ and 2×10⁸ ms⁻¹ respectively.
The speed of light in media M₁ and M₂ are 1.5x10⁸ ms⁻¹ and 2x10⁸ ms⁻¹ respectively. A ray travels from…
7 years ago
A magnifying glass of focal length 5 cm is used to view an object by a person
A magnifying glass of focal length 5 cm is used to view an object by a person whose smallest distance…
7 years ago
If the focal length of a concave mirror is 50 cm, then where should the object
If the focal length of a concave mirror is 50 cm, then where should the object is placed, so that…
7 years ago