To produce an enlarged and erect image with a concave mir...
To produce an enlarged and erect image with a concave mirror,the object must be positioned
at the principal focus
beyond the centre of curvature
between the principal focus and the centre of the curvature
between the principal focus and the pole
Correct answer is D
No explanation has been provided for this answer.
A calorimeter of thermal capacity 80j contains 20g of water at 25°C. Water at 100°C is added...
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