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Class 10
Solutions to CBSE Sample Paper - Science Class 10

Q 23 - hemispherical glass slab - Teachoo.jpg

The angle of incidence from air to glass at the point O on the hemispherical glass slab is. 


(A) 45° 

(B) 0° 

(C) 90° 

(D) 180°


Answer -

Angle of incidence is the angle between a incident ray and normal


In our figure, at point O

Angle of incidence at Point O-01.jpg

Incident ray and normal are the same line.


Thus, angle of incidence will be 0 degrees

So, the correct answer is (b)  


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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo