Question

Q.3 Write any two effects of electric current.
Q.4 What is virtual image? Which mirror forms virtual image?​

Answer 1

Answer:

Q3.The two effects of electric current are; heating effect and magnetic effect

Q4.Convex mirrors always form virtual images because the focal point and the centre of curvature of the convex mirror are imaginary points and that cannot be reached. So the image is formed inside the mirror and cannot be projected on a screen

Explanation:

Answer 2

Answer:

3. Magnetic, electric

4. It is erect. it appears to be formed through an actual intersection of reflected rays. but in reality there is no actual intersection of reflected rays. Convex mirror is the mirror for virtual image