Multiple Choice Question XI — task. Science CBSE, Class 10.

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1. When a ray of light enters a transparent medium it undergoes change is:

Frequency only
Wavelength only
Wavelength and velocity both
Velocity and frequency both

2. The image formed by a concave mirror is observed to be virtual, erect and larger than the object. the position of the object should be-

beyond the centre of curvature
between the focus and the centre of curvature
between the pole of the mirror and the focus
at the centre of curvature

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