Activity 10.2 NCERT Class 10 Science, Light Reflection and Refraction

Activity 10.2 NCERT Class 10 Science, Light – Reflection and Refraction

Brief procedure:

Activity 10.2 asks us to focus sunlight on a piece of paper using a concave mirror.

Observation: 

Paper catches fire when we focus a concave mirror in sunlight.

Explanation:

A concave mirror forms a real image. When the object is at infinite like sunlight, the image formed is concentrated as a beam. If the mirror is of sufficient size, this concentrated beam of light can easily burn paper and other relevant materials.

Next: Image of a candle in a concave mirror, Activity 10.3.

See also: Image formation on a spoon, Activity 10.1.

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