M.P. of a microscope =(f0L)(feD)
If f0↑⇒ M.P. of the microscope will decrease
M.P. of telescope =fef0
If f0↑⇒M/O. of telescope will increase.
NEET UG 2014 — Physics Optics
It the focal length of objective lens is increased then magnifying power of:
Held on 30 Apr 2014 · Verified 9 Jul 2026.
microscope will increase but that of telescope decrease
microscope and telescope both will increase
microscope and telescope both will decrease
microscope will decrease but that of telescope will increase
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The refractive index of glass is 1.5. The speed of light in glass is:
Two thin lenses of focal lengths f₁ = +20 cm and f₂ = -10 cm are in contact. The power of the combination is:
An unpolarized light beam travelling in air is incident on a medium of refractive index 1.73 at Brewster's angle. Then -
The intensity of transmitted light when a polaroid sheet, placed between two crossed polaroids at $22.5^{\circ}$ from the polarization axis of one of the polaroid, is ( $\mathrm{I}_0$ is the intensity of polarised light after passing through the first polaroid):
In a certain camera, a combination of four similar thin convex lenses are arranged axially in contact. Then the power of the combination and the total magnification in comparison to the power $(p)$ and magnification $(m)$ for each lens will be, respectively
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