Sounds waves and Motion MCQ question and answer with solution | Physics Gk MCQs

A. By $$\frac{L}{2}$$

B. By $$\frac{L}{4}$$

C. By 2L

D. By L

A. 0.45 m

B. 5.45 m

C. 1.45 m

D. 2.45 m

A. 373 m/sec

B. 434 m/sec

C. 343 m/sec

D. 383 m/sec

A. 10.0 μ bar

B. 0.0002 μ bar

C. 0.005 μ bar

D. 5.0 μ bar

A. CT scan

B. Magnetic resonance imaging

C. Ultrasonography

D. X-ray imaging technology

A. The speed of sound increases with increase in pressure and vice versa

B. The speed of sound decreases with increase in pressure and vice versa

C. The speed of sound is not affected by pressure

D. First the speed of sound increases with increase in pressure then starts decreasing though the pressure increases

A. Longitudinal waves

B. Transverse waves

C. Mechanical waves

D. Electromagnetic waves

A. Only B is correct

B. Only A is correct

C. Neither A nor B is correct

D. Both A and B are correct

A. 0.085 km

B. 0.85 km

C. 0.17 km

D. 1.7 km

A. Time period

B. Amplitude

C. Wavelength

D. The frequency