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The image formed by an objective of a compound microscope is :

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Important Questions on Ray Optics

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Alpha Question Bank for Medical: Physics>Chapter 30 - Ray Optics>Exercise-1>Q 231
If μ1 and μ2 are the refractive indices of the materials of core and cladding of an optical fibre, then the loss of light due to its leakage can be minimised by having
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Alpha Question Bank for Medical: Physics>Chapter 30 - Ray Optics>Exercise-1>Q 232
The phenomenon by which light travels in an optical fibres is
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Alpha Question Bank for Medical: Physics>Chapter 30 - Ray Optics>Exercise-1>Q 233
Advantage of optical fibre is
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Alpha Question Bank for Medical: Physics>Chapter 30 - Ray Optics>Exercise-1>Q 234
A laser beam is used for carrying out the surgery, because it:
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Alpha Question Bank for Medical: Physics>Chapter 30 - Ray Optics>Exercise-1>Q 235
The frequency of a light wave in a material is 2×1014 Hz and wavelength is 5000 Ao. The refractive index of material will be
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Alpha Question Bank for Medical: Physics>Chapter 30 - Ray Optics>Exercise-1>Q 236
Sodium lamps are used in foggy conditions because:
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Alpha Question Bank for Medical: Physics>Chapter 30 - Ray Optics>Exercise-1>Q 237
When light travels from air to water, which parameter does not change?
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Alpha Question Bank for Medical: Physics>Chapter 30 - Ray Optics>Exercise-2>Q 1
A person's eye is at a height of 1.5 m. He stands in front of a 0.3 m long plane mirror which is 0.8 m above the ground. The length of the image he sees of himself is