Question

(332 + 442 − 222) ÷ 11 = ____________​

Answer 1

Answer:

v∝

M

gas

1

Here, v is the velocity of sound in the medium, M

gas

is the

molecular weight of the gas.

M

air

=

4+1

M

N

2

×4+M

O

2

×1

=M

air

=

5

28×4+32×1

=28.8

Therefore,

v

air

v

O

2

=

M

O

2

M

air

=

32

28.8

=0.9486

v

O

2

=v

air

×0.9486=314.96≈315 ms

−1

Answer 2

solve

________________________________

$(332 + 442 - 222) \div 11 = 0 \\ bodmas \: rules \: according \ \\ : first \: solve \: bracket \\ (774 - 222) \div 11 = 0 \\ 552 \div 11 = 0 \\ 50.18$

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