ACT Science: Wave and SHM Quiz.

This is an MCQ-based quiz on the topic of ACT Science: Wave and SHM Quiz.

This set of MCQs helps you brush up on the important mathematics topic and prepare you to dive into skill practice and expand your knowledge to tackle the question and answer it carefully.

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3 containers A, B, C are filled with water as shown in the figure. What is the relation between the pressures at 1, 2, 3? Assume that all jars are stationery.

1:1:1 1:2:3 3:2:1 1:2:1

What is Pascal’s Law?

For every action, there is an equal and opposite reaction Force is the time rate of change of momentum For an ideal gas, the pressure is directly proportional to temperature and constant volume and mass A pressure change at any point in the fluid is transmitted throughout the fluid such that the same change occurs everywhere

A container has 3 gases whose mass ratio is 1:3:5. What is the ratio of mean square speed of the molecules of two gases? Their atomic masses are 20u, 30u & 40u corresponding to the order in which the ratios are given.

2:3:4 4:3:2 2:√3:√2 √2:√3:2

What is the relation between time periods of the two given SHMs.

4T1 = T2 T1 = 2T2 2T1 = T2 T1 = 4T2

The extension in a string, obeying Hookes law is X. The speed of sound in the stretched string is V. If the extension in the string is increased to 1.5 X, the speed of sound will be

1.22 V 0.61 V 1.50 V 0.75 V

When an AC voltage of 220 V is applied to the capacitor C

the maximum voltage between plates is 220 V. the current is in phase with the applied voltage. the charge on the plates is out of phase with the applied voltage. power delivered to the capacitor is zero.

A carrier frequency of 1 MHz and peak value of 10 V is amplitude modulated with a signal frequency of 10 kHz with peak value of 0.5 V. Then the modulation index and the side band frequencies respectively are

0.05 and 1 ± 0.010 MHz 0.5 and 1 ± 0.010 MHz 0.05 and 1 ± 0.005 MHz 0.5 and 1 ± 0.005 MHz(e) 0.05 and 1 ± 0.100 MHz

The distance of coverage of a transmitting antenna is 12.8 km. Then, the height of the antenna is (Given that radius of earth = 6400 km)

6.4 m 12.8 m 3.2 m 16 m(e) 25.6 m

If Ec = 20 sin 105 πt and Em = 10 sin 400 πt are carrier and modulating signals, the modulation index is

56% 30% 50% 48%

1000 kHz carrier wave is amplitude modulated by the signal frequency 200 – 4000 Hz. The channel width of this case is

8 kHz 4 kHz 7.6 kHz 3.8 kHz

Quiz/Test Summary

Title: ACT Science: Wave and SHM Quiz.

Questions: 10

Contributed by:

NEO Thu, Jun 09, 2022 07:54 AM UTC

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