CBSE Class 10 / Science / Demo Practice
Science — 10 Normal Demo Questions
Testing content only: These are normal practice questions, not PYQs. Demo activity is kept separate from real performance analytics.
DEMO 2/10Easy
A concave mirror can form a real image when the object is placed:
Solve Question →DEMO 3/10Easy
The focal length of a spherical mirror is related to radius of curvature R by:
Solve Question →DEMO 4/10Easy
Which lens is thicker at the centre than at the edges?
Solve Question →DEMO 7/10Medium
A ray passing through the optical centre of a thin lens emerges:
Solve Question →DEMO 8/10Medium
The mirror used as a rear-view mirror in vehicles is generally:
Solve Question →DEMO 9/10Standard
For a convex lens, a ray parallel to the principal axis refracts through the:
Solve Question →
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