Download App

Sound Waves — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsSound Waves1 Mark
Question
When two waves with same frequency and constant phase difference interfere,
  1. There is a gain of energy.
  2. There is a loss of energy
  3. The energy is redistributed and the distribution changes with time.
  4. The energy is redistributed and the distribution remains constant in time.
✓

Answer

  1. The energy is redistributed and the distribution remains constant in time.

Explanation:

The energy is redistributed due to the presence of interference. However, as the frequency and phase remain constant. the distribution also remains constant With time.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Sound Waves→Sound Waves — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

The current flowing in a copper voltameter is 3.2 A. The number of copper ions ( deposited at the cathode per minute is

(a) 0.5  

(b) 1.5  

(c) 3  

(d) 6  
→

A galvanometer with a resistance of 12 W gives full scale deflection when a current of 3 mA is passed. It is required to convert it into a voltmeter which can read up to 18 V.  the resistance to be connected is

(a) 6000 W

(b) 5988 W

(c) 5000 W

(d) 4988 W
→
The coefficient of mutual induction between two coils is 4H. If the current in the primary reduces from 5A to zero in 10-3 second then the induced emf in the secondary coil will be
→

In the circuit shown in figure the maximum output voltage V0 is

(a) 0 V

(b) 5 V

(c) 10 V

(d)  
→
In beta decay, the typical Q value is approximately:
→

In the CB mode of a transistor, when the collector voltage is changed by 0.5 volt. The collector current changes by 0.05 mA. The output resistance will be

(a) 10 kW  

(b) 20 kW

(c) 5 kW  

(d) 2.5 kW
→
Complete the following statements with an appropriate word/ term be filled in the blank space(s).
The force of attraction or repulsion between two charges is given by ......................
→
The value indicated by Fermi energy level in an intrinsic semiconductor is:
→

A series combination of three capacitors of capacities 1μF, 2 μF  and  8 μF is connected to a battery of e.m.f. 13 volt. The potential difference across the plates of 2 μF  capacitor will be

(a) 1 V

(b) 8V

(c) 4V

(d)  
→
When a soap bubble is negatively charged, its radius is:
→