Question

Question 1. Choose the correct answer.
2M
1 which one of the following materials or not be used to make a lens
A Water B Glass C Plastic
D. Clay
2. Which of the following terms does not represent electric power in a circuit.
A.PR
B. IR?
C. VI.
D.VIR
Question 2. Which type of mirror observing the rear view in vehicles.
1 M
Question 3. in a convex lens in which positions of the object will be magnification be-1. 1M
Question 4. An electric bulb is connected to a 220 v generator. The current is 0.50 A. What is the
2M
power of bulb
Question 5. On which factor does the resistance of a conductor depend?
3 M
2 M
Question 6. Find the power of a concave lens of focal length 2M.
2M
Question 7. Write mirror and lens formula.​

Answer 1

Answer:

1 ans : A water , l am sorry l can' t give other