MHT CET 2020 16th October Evening Shift | MHT CET Year Wise Previous Years Questions

An open organ pipe and a closed organ pipe have the frequency of their first overtone identical. The ratio of length of open pipe to that of closed pipe is

$$1: 2$$

$$3: 4$$

$$4: 3$$

$$2: 1$$

MHT CET 2020 16th October Evening Shift

MCQ (Single Correct Answer)

-0

A particle starting from rest moves along the circumference of a circle of radius $$r$$ with angular acceleration $$\alpha$$. The magnitude of the average velocity, in the time it completes the small angular displacement $$\theta$$ is

$$r\left(\frac{2}{\alpha \theta}\right)^2$$

$$r\left(\frac{\alpha \theta}{2}\right)^2$$

$$\rho\left(\frac{\alpha \theta}{2}\right)$$

$$r\left(\frac{\alpha \theta}{2}\right)^{\frac{1}{2}}$$

MHT CET 2020 16th October Evening Shift

MCQ (Single Correct Answer)

-0

Two spherical black bodies of radius $$r_1$$ and $$r_2$$ with surface temperature $$T_1$$ and $$T_2$$ respectively, radiate same power, then $$r_1: r_2$$ is

$$\left(\frac{T_2}{T_1}\right)^4$$

$$\left(\frac{T_2}{T_1}\right)^2$$

$$\left(\frac{T_1}{T_2}\right)^2$$

$$\left(\frac{T_1}{T_2}\right)^4$$

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