Medium· Lenses and lens maker's formula· +4 / 0
Distance between virtual magnified image, (size three times of object) of an object placed in front of convex lens and object is 20 cm. The focal length of lens is cm, then is ______
A parallel beam of light is allowed to fall on a transparent spherical globe of diameter 30\ cm and refractive index 1.5 . The distance…
JEE Mains 2022 June 29 Shift 1 · Hard
The speed of light in media A and B are 2.0×10^10\ cm/s and 1.5×10^10\ cm/s respectively. A ray of light enters from the medium B to A at…
JEE Mains 2022 June 29 Shift 2 · Medium
The resolving power of a telescope for an aperture of 24.4\ cm and a wavelength λ=2440\ is :
JEE Mains 2022, June 28 - Shift 1 · Medium