Physics, asked by avripr, 5 months ago

A person with a defect in eye uses a lens of focal length 20 cm . What would be the power of lens?

Answers

Answered by venni20082008

3

Answer:-

5D will be the answer

Explanation:

P = 100/f (f in centimetres)

P = 100/20 = 5 D

Previous Question

Next Question

Similar questions

Math, 2 months ago

A number x is equal to its own square minus 42 . find two possible values of x .

Hindi, 2 months ago

एक गांव मे एक किसान रहता था। ...

English, 2 months ago

Who do you think is the I in the poem _ the poet or a schoolchild ? Give reason...

Physics, 5 months ago

LINCOMPREHEND I THINK ANITELT Answer these questions orally 1 What things in the first stanza tell you that the poet is curious'? 2. Why do you thi the cloud fully?

Science, 5 months ago

Q29. A girl is given naphthalene balls powder Q30. How will the equations of motion for object moving with a uniform velocity change? SECTION C (FIVE MARKS EACH) Q31.(a) Derive the formula v=u + at, where the symbols have usual meanings. (b)A cyclist is travelling at 20 m/s She applies brakes so that she does not collide with a wall 18 may have ?

English, 10 months ago

a special dish that is prepared on a special any occasion at home...

Biology, 10 months ago

Measure of an insertion is. A.mass B.force C.speed D. Momentum...

Geography, 10 months ago

When does any material flow? What happens exactly when it flows?