CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Angular Magnification in Simple Microscope

The magnifyin...

Question

The magnifying power of a simple microscope can be increased, if we use eye-piece of

A

Higher focal length

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

Smaller focal length

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

Higher diameter

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Smaller diameter

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
Smaller focal length

$m = 1 + \frac{D}{f}$ So, smaller the focal length, higher the magnifying power.

Suggest Corrections

thumbs-up

0

Similar questions

Q. The objective of a terrestrial telescope has focal length of 120 cm and diameter 5 cm. The focal length of the eye piece is 2 cm. The magnifying power of telescope for distant object is :

Q. A compound microscope has an objective of focal length 2 cm and eye piece of focal length 5 cm.The distance between two lenses is 25 cm. If final image is at 25 cm from the eye-piece. Then the magnifying power of the microscope.

Q. Answer the following questions: (a) The angle subtended at the eye by an object is equal to the angle subtended at the eye by the virtual image produced by a magnifying glass. In what sense then does a magnifying glass provide angular magnification? (b) In viewing through a magnifying glass, one usually positions one’s eyes very close to the lens. Does angular magnification change if the eye is moved back? (c) Magnifying power of a simple microscope is inversely proportional to the focal length of the lens. What then stops us from using a convex lens of smaller and smaller focal length and achieving greater and greater magnifying power? (d) Why must both the objective and the eyepiece of a compound microscope have short focal lengths? (e) When viewing through a compound microscope, our eyes should be positioned not on the eyepiece but a short distance away from it for best viewing. Why? How much should be that short distance between the eye and eyepiece?

Q. In a compound microscope the focal length of objective lens is

1.2 c m

and focal length of eye piece is

3.0 c m

. When object is kept at

1.25 c m

in from of objective, final image is formed at infinity. Magnifying power of the compound microscope should be :

Q. The magnifying power of a simple microscope can be increased, if we use eye-piece of focal length.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Simple Microscope

PHYSICS

Watch in App

explore_more_icon

Explore more

Angular Magnification in Simple Microscope

Standard X Physics

Join BYJU'S Learning Program

CrossIcon