C When a wave travels from one medium to another (i.e refraction) both its velocity \& wavelength change but the frequency remains constant.
J and K CET- 2009
WAVES
172189
A stationary wave equation is given as $\mathbf{y}=\mathbf{2 0}$ $\sin (20 x) \cos (1000 t)$ What will be the speed of stationary wave?
1 $20 \mathrm{~m} / \mathrm{s}$
2 $50 \mathrm{~m} / \mathrm{s}$
3 $2 \mathrm{~cm} / \mathrm{s}$
4 not defined
Explanation:
D For stationary wave, wave speed is not defined.
JIPMER-2019
WAVES
172163
The wave front is a surface in which
1 all points are in the same phase
2 there are pairs of points in opposite phase
3 there are pairs of point with phase difference $(\pi / 2)$
4 there is no relation between the phases
Explanation:
A A wave front is the locus of points having the same phase.
AP EAMCET-20.08.2021
WAVES
172174
A standing wave can be produced by combining
1 Two longitudinal travelling waves
2 Two transverse travelling waves
3 Two sinusoidal travelling waves of identical frequency travelling in opposite directions
4 Two sinusoidal travelling waves of identical frequency travelling in same direction
Explanation:
C Standing waves on a string is an example of superposition of two sinusoidal travelling waves of identical frequency travelling in opposite directions. Sound waves in an organ pipe is an example of standing wave.
C When a wave travels from one medium to another (i.e refraction) both its velocity \& wavelength change but the frequency remains constant.
J and K CET- 2009
WAVES
172189
A stationary wave equation is given as $\mathbf{y}=\mathbf{2 0}$ $\sin (20 x) \cos (1000 t)$ What will be the speed of stationary wave?
1 $20 \mathrm{~m} / \mathrm{s}$
2 $50 \mathrm{~m} / \mathrm{s}$
3 $2 \mathrm{~cm} / \mathrm{s}$
4 not defined
Explanation:
D For stationary wave, wave speed is not defined.
JIPMER-2019
WAVES
172163
The wave front is a surface in which
1 all points are in the same phase
2 there are pairs of points in opposite phase
3 there are pairs of point with phase difference $(\pi / 2)$
4 there is no relation between the phases
Explanation:
A A wave front is the locus of points having the same phase.
AP EAMCET-20.08.2021
WAVES
172174
A standing wave can be produced by combining
1 Two longitudinal travelling waves
2 Two transverse travelling waves
3 Two sinusoidal travelling waves of identical frequency travelling in opposite directions
4 Two sinusoidal travelling waves of identical frequency travelling in same direction
Explanation:
C Standing waves on a string is an example of superposition of two sinusoidal travelling waves of identical frequency travelling in opposite directions. Sound waves in an organ pipe is an example of standing wave.
C When a wave travels from one medium to another (i.e refraction) both its velocity \& wavelength change but the frequency remains constant.
J and K CET- 2009
WAVES
172189
A stationary wave equation is given as $\mathbf{y}=\mathbf{2 0}$ $\sin (20 x) \cos (1000 t)$ What will be the speed of stationary wave?
1 $20 \mathrm{~m} / \mathrm{s}$
2 $50 \mathrm{~m} / \mathrm{s}$
3 $2 \mathrm{~cm} / \mathrm{s}$
4 not defined
Explanation:
D For stationary wave, wave speed is not defined.
JIPMER-2019
WAVES
172163
The wave front is a surface in which
1 all points are in the same phase
2 there are pairs of points in opposite phase
3 there are pairs of point with phase difference $(\pi / 2)$
4 there is no relation between the phases
Explanation:
A A wave front is the locus of points having the same phase.
AP EAMCET-20.08.2021
WAVES
172174
A standing wave can be produced by combining
1 Two longitudinal travelling waves
2 Two transverse travelling waves
3 Two sinusoidal travelling waves of identical frequency travelling in opposite directions
4 Two sinusoidal travelling waves of identical frequency travelling in same direction
Explanation:
C Standing waves on a string is an example of superposition of two sinusoidal travelling waves of identical frequency travelling in opposite directions. Sound waves in an organ pipe is an example of standing wave.
C When a wave travels from one medium to another (i.e refraction) both its velocity \& wavelength change but the frequency remains constant.
J and K CET- 2009
WAVES
172189
A stationary wave equation is given as $\mathbf{y}=\mathbf{2 0}$ $\sin (20 x) \cos (1000 t)$ What will be the speed of stationary wave?
1 $20 \mathrm{~m} / \mathrm{s}$
2 $50 \mathrm{~m} / \mathrm{s}$
3 $2 \mathrm{~cm} / \mathrm{s}$
4 not defined
Explanation:
D For stationary wave, wave speed is not defined.
JIPMER-2019
WAVES
172163
The wave front is a surface in which
1 all points are in the same phase
2 there are pairs of points in opposite phase
3 there are pairs of point with phase difference $(\pi / 2)$
4 there is no relation between the phases
Explanation:
A A wave front is the locus of points having the same phase.
AP EAMCET-20.08.2021
WAVES
172174
A standing wave can be produced by combining
1 Two longitudinal travelling waves
2 Two transverse travelling waves
3 Two sinusoidal travelling waves of identical frequency travelling in opposite directions
4 Two sinusoidal travelling waves of identical frequency travelling in same direction
Explanation:
C Standing waves on a string is an example of superposition of two sinusoidal travelling waves of identical frequency travelling in opposite directions. Sound waves in an organ pipe is an example of standing wave.
