Question

Fill in the blanks with appropriate main or auxiliary verbs.
1. You ....
have practiced a lot. You did really well.
(shall, might, must, can)
2. I can't find my car keys. I ...
(might, shall, should, can)
3.
(Must, Will, May, Might)
I ask something, ma'am?

4. I ....... swim very well.
(may, must, would, can)
5. She ...... ........ already ....
(leave) the place when I
(reach) there.
6. .... you please help me with this project?
(Can, May, Might, Should)
7. She .......
(go) to Malaysia during vacation.
8. My brother
speak French and Spanish fluently.
(may, can, will, should)
9. What ......
you...
..... (do) when the doorbell rang.
10. 1........ .....
like to have some more juice? (should, shall, would, can)
11. 1.......
(Like) to have more sugar in my tea.
12. We .......
leave now. It's getting late.
(shall, may, should, can)
13.
(do) she know the way to the bank.
14. They ......... (be) playing since noon.

15. ...... we have dinner now?
(Should, Shall, Might, Must)


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Answer 1

Answer:

Snell's laws of refraction of light :

(1) : The incident ray, refracted ray and normal to the refracted surface lie in same plane.

(2) : Ratio of sine of angle of incidence in medium 1 to that of angle of refraction in medium 2 is equal to the ratio of refractive index of medium 2 to that of 1.

⟹

sinr

sini

=

n

2

n

2

hin