Question

Q. Answer the following questions in one word or one sentence: 1. Name two natural and two man-made sources of light. 2. What name is given to the object through which we can see but not clearly? 3. What type of screen is used in a pinhole camera? 4. Give one example of an object through which we can see clearly. 5. On which principle does a pinhole camera works? 6. Can we see from a bend pipe? 7. Name a device which can be used to see things on the other side of a high wall. 8. Suggest a situation where we obtain more than one shadow of an object at a time.​

Answer 1

Explanation:

man made source of light is 1.bulb ,पंखा, टीवी

Answer 2

Answer:

1: natural = sun,star man made = bulb,tube light

2: translucent glass

3: sorry,boss i don't know this

4:microscope

Explanation:

i don't know 3,5,6,7 sorry