NEET PYQs for Optical Instruments with Solutions: Practice NEET Previous Year Questions

Updated on - Jan 19, 2026

Optical Instruments is an important topic in the Physics section in NEET exam. Practising this topic will increase your score overall and make your conceptual grip on NEET exam stronger.

This article gives you a full set of NEET PYQs for Optical Instruments with explanations for effective preparation. Practice of NEET Physics PYQs including Optical Instruments questions regularly will improve accuracy, speed, and confidence in the NEET 2026 exam.

NEET PYQs for Optical Instruments with Solutions

1.
The magnifying power of a telescope is $9.$ When it is adjusted for parallel rays the distance between the objective and eyepiece is $20\, cm.$ The focal length of lenses are
- 10 cm, 10 cm
- 15 cm, 5 cm
- 18 cm, 2 cm
- 11 cm, 9 cm
View Solution
2.
The angle of a prism is 'A'. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2A on the first surface returns back through the same path after suffering reflection at the silvered surface. The refractive indexµ, of the prism is
- 2cos A
- $\frac{1}{2}cos A$
- tan A
- 2 sin A
View Solution
3.
A microscope has an objective of focal length $f_o = 2$ cm and an eyepiece of focal length $f_e = 4$ cm. The tube length of the microscope is $L = 40$ cm. If the distance of distinct vision of eye is $D = 25$ cm, the magnification in the microscope is:
- $ 125 $
- $ 150 $
- $ 250 $
- $ 100 $
View Solution
4.
An astronomical telescope of tenfold angular magnification has a length of 44 cm. The focal length of the objective is
- 44 cm
- 440 cm
- 4 cm
- 40 cm.
View Solution

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NEET PYQs for Optical Instruments with Solutions

1.The magnifying power of a telescope is $9.$ When it is adjusted for parallel rays the distance between the objective and eyepiece is $20\, cm.$ The focal length of lenses are

2.The angle of a prism is 'A'. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2A on the first surface returns back through the same path after suffering reflection at the silvered surface. The refractive indexµ, of the prism is

3.A microscope has an objective of focal length \(f_o = 2\) cm and an eyepiece of focal length \(f_e = 4\) cm. The tube length of the microscope is \(L = 40\) cm. If the distance of distinct vision of eye is \(D = 25\) cm, the magnification in the microscope is:

4.An astronomical telescope of tenfold angular magnification has a length of 44 cm. The focal length of the objective is

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1.
The magnifying power of a telescope is $9.$ When it is adjusted for parallel rays the distance between the objective and eyepiece is $20\, cm.$ The focal length of lenses are

2.
The angle of a prism is 'A'. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2A on the first surface returns back through the same path after suffering reflection at the silvered surface. The refractive indexµ, of the prism is

3.
A microscope has an objective of focal length \(f_o = 2\) cm and an eyepiece of focal length \(f_e = 4\) cm. The tube length of the microscope is \(L = 40\) cm. If the distance of distinct vision of eye is \(D = 25\) cm, the magnification in the microscope is:

4.
An astronomical telescope of tenfold angular magnification has a length of 44 cm. The focal length of the objective is