Question

2. A soft iron bar is inserted inside a current-carrying solenoid. The magnetic field inside the solenoid


a) Will decrease b) Will become zero c) Will increase d) Will remains the same


3. The lens which always produces erect, diminished and virtual image is

a) convex lens b) concave lens c) biconvex lens d)all the above​

Answer 1

Answer:

3 questions answere is convex

Answer 2

Answer:

a) will increases.

b)concave lens.

Explanation:

hope it helps you.