Part 1

Magnification at least distance of distinct vision of a simple microscope having its focal length 5 cm is Magnification at least distance of distinct vision of a simple microscope having its focal length 5 cm is November 9, 2020 Category: Chapter 9 - Ray Optics , MTG NEET Physics , Part 1 ,

The focal lengths of the objective and the eyepiece of the telescope are 225 cm and 5 cm respectively. The magnifying power of the telescope will be The focal lengths of the objective and the eyepiece of the telescope are 225 cm and 5 cm respectively. The magnifying power of the telescope will be November [...]

The focal length of the objective and of the eye-piece of a compound microscope are fo and fe respectively. If L is the tube length and D, the least distance of distinct vision, then its angular magnification, when the image is formed at infinity is The focal length of the objective and of the eye-piece [...]

A telescope consists of two thin lenses of focal lengths 0.3 m and 3 cm respectively. It is focused on moon which subtends on angle of 0.5^o at the objective. Then, the angle subtended at the eye by the final image will be: A telescope consists of two thin lenses of focal lengths 0.3 m [...]

When sunlight is scattered by atmospheric atoms and molecules the amount of scattering of light of wavelength 440 nm is A. Then, the amount of scattering of light of wavelength 660 nm is approximately the amount of scattering of light of wavelength 660 nm is approximately When sunlight is scattered by atmospheric atoms and molecules [...]

Figure shows a mixture of blue, green and red coloured rays incident normally on a right angled prism. The critical angles of the material of the prism for red, green and blue are 46^o , 44^o and 43^o respectively. The arrangement will separate : 44^o and 43^o respectively. The arrangement will separate : Figure shows [...]

Frequencies of light incident on a system of scattering particles are in the ratio of 1:2. Then, the intensity of scattered light in a particular direction is: Frequencies of light incident on a system of scattering particles are in the ratio of 1:2. Then the intensity of scattered light in a particular direction is: November [...]

A given ray of light suffers minimum deviation in an equilateral prism P. Additional prism Q and R of identical shape and of the same material as P are now added as shown in the figure. The ray will now suffer The refractive through the prisms are as shown. Pick out the WRONG statement from [...]

Two beams of red and violet colours are made to pass separately through a prism (angle of the prism is 60^o ). In the minimum deviation position, the angle of refraction inside the prism will be : the angle of refraction inside the prism will be : Two beams of red and violet colours are [...]

In the dispersion of white light from a prism, the violet light is deviated more than the red light because : In the dispersion of white light from a prism the violet light is deviated more than the red light because : November 9, 2020 Category: Chapter 9 - Ray Optics , MTG NEET Physics [...]