## Microscope-MCQ-Basic

Physics is an important subject in preparation for various Competitive exams.To keep a track of your preparation we have designed a small quiz of 10 Basic Level Questions on Microscope. You have 10 minutes to solve the quiz, click the start timer button in order to start the timer and then click on submit button at the end to submit the quiz and view your scores and correct answers.

Q1. In a compound microscope the object of fo and eyepiece of fe are placed at distance L such that L equals

•  fo + fe
•  fo - fe
•  Much greater than fo or fe
•  Need not depend either value of focal lengths

Much greater than fo or fe

Q2. In a simple microscope, if the final image is located at infinity then its magnifying power is

•  25/f
•  D/25
•  f/25
•  f/D+1

25/f

Q3. The maximum magnification that can be obtained with a convex lens of focal length 2.5 cm is (the least distance of distinct vision is 25 cm)

•  10
•  0.1
•  62.5
•  11

11

Q4. In a compound microscope, the intermediate image is

•  Virtual, erect and magnified
•  Real, erect and magnified
•  Real, inverted and magnified
•  Virtual, erect and reduced

Real, inverted and magnified

Q5. A compound microscope has two lenses. The magnifying power of one is 5 and the combined magnifying power is 100. The magnifying power of the other lens is

•  10
•  20
•  50
•  25

20

Q6. The angular magnification of a simple microscope can be increased by increasing

•  Focal length of lens
•  Size of object
•  Aperture of lens
•  Power of lens

Power of lens

Q7. The magnification produced by the objective lens and the eye lens of a compound microscope are 25 and 6 respectively. The magnifying power of this microscope is

•  19
•  31
•  150
•  √150
150

Q8. The length of the compound microscope is 14 cm. The magnifying power for relaxed eye is 25. If the focal length of eye lens is 5 cm, then the object distance for objective lens will be

•  1.8 cm
•  1.5 cm
•  2.1 cm
•  2.4 cm

1.8 cm

Q9. The magnifying power of a simple microscope is 6. The focal length of its lens in metres will be, if least distance of distinct vision is 25 cm

•  0.05
•  0.06
•  0.25
•  0.12

0.05

Q10. Relative difference of focal lengths of objective and eye lens in the microscope and telescope is given as

•  It is equal in both
•  It is more in telescope
•  It is more in microscope
•  It may be more in any one

It is more in telescope

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