Question

please solve this question as early as possible

Answer 1

Answer:

1 y/ a

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Answer 2

Answer:

4. [b/c ]= [L/T]

Explanation:

• The dimensions of y should be equal to a as trigonometric functions are dimensionless.So y/a is dimensionless.
• Further, the dimensions of bt should be the same as cx as variables with same dimensions can only undergo addition and subtraction.

Given, [t]=[T] and [x]=[L]

• Also [bt] = [cx] =0 since the dimensions of the trigonometric functions should be zero.

So, [b]=[1/T] and [c]=[1/L] Hence, bt and cx are dimensionless.

But, [b]/[c] =[1/T]/[1/L] = [L]/[T]