Chapter 9 – Ray Optics

If the ratio of magnifications produced by a simple microscope in near point adjustment and far point adjustment is 6/5, then the focal length of the lens is: (take D = 25 cm) If the ratio of magnifications produced by a simple microscope in near point adjustment and far point adjustment is 6/5 then the [...]

The objective of a compound microscope is essentially The objective of a compound microscope is essentially November 9, 2020 Category: Chapter 9 - Ray Optics , MTG NEET Physics , Part 1 ,

A compound microscope has an eye piece of focal length 10 cm and an objective of focal length 4 cm. The magnification, if an object is kept at a distance of 5 cm from the objective and final image is formed at the least distance of distinct vision (20 cm), is: A compound microscope has [...]

An astronomical telescope has an angular magnification of magnitude 5 for distant object. The separation between the objective and the eye-piece is 36 cm. The final image is formed at infinity. The focal length f0 of the objective and fe , of the eye-piece are : A ray of light is incident normally on one [...]

When a telescope is in normal adjustment, the distance of the objective from the eyepiece is found to be 100 cm. If the magnifying power of the telescope, at normal adjustment, is 24, the focal lengths of the lenses are: at normal adjustment is 24 the distance of the objective from the eyepiece is found [...]

If the ratio of amounts of scattering of two light waves is 1:4, the ratio of their wavelength is If the ratio of amounts of scattering of two light waves is 1:4 the ratio of their wavelength is November 9, 2020 Category: Chapter 9 - Ray Optics , MTG NEET Physics , Part 1 ,

In a given direction, the intensities of the scattered light by a scattering substance for two beams of light are in the ratio of 256:81. The ratio of the frequency of the first beam to the frequency of the second beam is In a given direction the intensities of the scattered light by a scattering [...]

If the scattering intensity of a liquid is 8 units at a wavelength of 500 nm, then the scattering intensity at a wavelength of 400 m will be approximately If the scattering intensity of a liquid is 8 units at a wavelength of 500 nm then the scattering intensity at a wavelength of 400 m [...]

At what angle should a ray of light be incident on the face of a prism of refracting angle 60∘, so that it just suffers total internal reflection at the other face ? The refractive index of the prism is 1.524. At what angle should a ray of light be incident on the face of [...]

A ray of light is incident normally on one of the refracting surfaces of an equilateral prism. if the refractive index of the material of the prism is 1.5, then A ray of light is incident normally on one of the refracting surfaces of an equilateral prism. if the refractive index of the material of [...]