Physics 2nd Paper MCQ-Dhaka Board-2019

1. What is the angle between the equipotential surface and the electric field?

2. If A convex lens of $4 \mathrm{~cm}$ focal length makes two times magnified real image when an object is placed before it.

If a convex lens of twice times focal length is placed with that lens, what will be the nature of the final image?

3. Which one is correct?

4. Which ray has the minimum permittivity?

5. What will be the output signal, if a diode is removed from a full wave bridge rectifier?