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#Solution of CBSE Class X Sample Paper 2025-26 #concave mirror #convex mirror #scattering #blue sky


We know that:
Concave mirrors can produce both real and virtual images depending on the position of the object.

In both concave and convex mirrors, the image location can be determined using the mirror formula 1 𝑓 = 1 𝑣 + 1 𝑢 where f is the focal length, v is the image distance, and u is the object distance.

According to Rayleigh’s scattering: The Intensity of Scattering is inversely proportional to fourth power of wave length( ∝1/λ*4).
When sun light travels through atmosphere then blue light scatters the most having smaller wavelength. that is why the sky appears blue.

A point object is placed at a distance of 26 cm from a convex mirror of focal length 26 cm. The position of the image will be.
Mirror formula is 1/𝑓 = 1/𝑣 + 1/𝑢
Here f = + 26 cm, u = -26 cm, v = ?
1/f = 1/v + 1/u
1/26 = 1/v + 1/(-26) = 1/v - 1/26
1/26 + 1/26 = 1/v
1/v = 2/26 = 1/13
v = 13 cm
Position of the image is 13 cm behind the convex mirror.


#Solution of CBSE Class X Sample Paper 2025-26,#concave mirror,#convex mirror,#scattering,#blue sky,#blue,#reflection,#mirror formula,#laws of reflection,#virtual image

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