Question

Q.Fill in the blanks.
1. The speed of light is ______ km/s.
2. _______ materials like woods and metal absorb light and do not pass it through.
3. _______ lenses are thickest in the middle and thin around the edges.
4. In bicycle the large wheel is also called _______ wheel.
5. The unit of pressure is ________.
(plz answer because I am in a hurry)​

Answer 1

1) 3.8×10^-6

2) opaque

3) convex

5) Pascal

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Answer 2

Answer:

1) 299 792 458 m / s

2) opaque

3) Convex lens

4)

5) pascal