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ICSE Class 10 Physics Question 16 of 25

Solved 2025 Question Paper ICSE Class 10 Physics — Question 6

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6
Question

Question 5(iii)

(a) Name the radiations :

  1. for which a quartz prism is used to study the spectrum.
  2. which are used in remote sensing devices.
  3. which are used in traffic signals in India.

(b) Name one property common to all electromagnetic radiations.

Answer

(a)

  1. For ultraviolet radiation, a quartz prism is used since, ordinary glass absorbs UV radiation.
  2. Infra red radiation.
  3. Visible light radiation (Red, Yellow, Green)

(b) All electromagnetic radiations travels with the same speed ie., 3 × 108 ms-1.