Ray Optics-Resolving Power of Microscopes and Astronomical Telescopes (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 9 - 11 of 11

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Question number: 9

» Ray Optics » Resolving Power of Microscopes and Astronomical Telescopes

MCQ▾

Question

In a compound microscope the objective and the eye-piece have focal lengths of 0.95 cm and 5 cm respectively, and are kept at a distance of 20 cm. The last image is formed at a distance of 25 cm from the eye-piece. Calculate the total magnification.

Choices

Choice (4) Response

a.

75

b.

94

c.

84

d.

88

Question number: 10

» Ray Optics » Resolving Power of Microscopes and Astronomical Telescopes

MCQ▾

Question

What should be the size of the aperture of the objective of telescope which can just resolve the two stars of angular width of 10 -3 degree by light of wavelength 5000Å?

Choices

Choice (4) Response

a.

3.5 cm

b.

3.5 mm

c.

3.5 m

d.

3.5 km

Question number: 11

» Ray Optics » Resolving Power of Microscopes and Astronomical Telescopes

Appeared in Year: 2017

MCQ▾

Question

The ratio of resolving powers of an optical microscope for two wavelengths Equation and Equation is:

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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