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ICSE Class 10 Physics Question 17 of 27

Solved 2024 Specimen Paper ICSE Class 10 Physics — Question 6

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Question 5(iii)

(a) Mixture of red + blue + green is passed through a convex lens as shown in the diagram below. State whether the ray passes through a single point or through different points on principle axis after refraction.

Mixture of red + blue + green is passed through a convex lens as shown in the diagram below. State whether the ray passes through a single point or through different points on principle axis after refraction. ICSE 2024 Specimen Physics Solved Question Paper.

(b) Name the invisible radiations which can be obtained using quartz prism? State one use of these radiations.

(c) Name one radiations having wavelength longer than the wavelength of these radiations.

Answer

(a) The ray will pass through different points on principle axis after refraction through the convex lens. Red colour will deviate the least, followed by green and then blue will deviate the most.

(b) Ultraviolet radiations. Ultraviolet radiations are used for sterilising air, surgical equipment, etc.

(c) Infrared radiation.