An object is placed at a distance u from a simple microscope of focal length f. The angular magnification obtained depends

1. on f but not on u

2. on u but not on f

3. on f as well as u

4. neither on f nor on u

Subtopic:  Simple & Compound Microscope |
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To increase the angular magnification of a simple microscope, one should increase

1. the focal length of the lens

2. the power of the lens

3. the aperture of the lens

4. the object size

Subtopic:  Simple & Compound Microscope |
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A man is looking at a small object placed at his near point. Without alternating the position of his eye or the object, he puts a simple microscope of magnifying power 5X before his eyes. The angular magnification achieved is

1. 5

2. 2.5

3. 1

4. 0.2

Subtopic:  Simple & Compound Microscope |

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In which of the following the final image is erect?

(a) Simple microscope

(b) Compound microscope

(c) Astronomical telescope

(d) Galilean telescope

Choose the correct option:

1. (a) and (b)

2. (b) and (c)

3. (c) and (d)

4. (a) and (d)

Subtopic:  Simple & Compound Microscope |

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The focal length of the objective of a compound microscope is f0 and its distance from the eyepiece is L. The object is placed at a distance u from the objective. For proper working of the instrument,

(a) L < u

(b) L > u

(c) f0 < L < 2f0

(d) L > 2f0

Choose the correct option:

1. (a) and (b)

2. (b) and (d)

3. (b) and (c)

4. (c) and (d)

Subtopic:  Simple & Compound Microscope |

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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology