GCSE - Gcse Physics - Light - Lenses 02 Solution

Q.1.

The power of a lens (SI system) can be calculated using which of the following formulae?

Q.2.

What is chromatic aberration?

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Where light is split into constituent colours as it travels through a lens
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Separate rays of coloured light are converged into one beam of chromatic light
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Where chromatic light is split into two colours after travelling through a lens
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Chromatic aberration does not affect light

Q.3.

What is the focal length of a lens which has a power of 0.5?

Q.4.

What is the power of lens which has a focal point of 20 cm?

Q.5.

A lens which focuses light to a point is called a what?

Q.6.

Calculate the power of a converging lens of focal length 0.05 m.

Q.7.

What part of the eye focuses the light?

Q.8.

In the eye, which of the following parts does light NOT travel through?

Q.9.

What is the unit of power for a lens?

Q.10.

What is the power of a lens dependent on?