Physics
Two source S1 and S2 of intensity I1 and I2 are placed in front of a screen [Figure a]. The pattern of intensity distribution see in the central portion is given by Figure b. In this case which of the following statement are true.
19
Nov
Two source S1 and S2 of intensity I1 and I2 are placed in front of a screen [Figure a]. The pattern of intensity distribution see in the central portion is given by Figure b. In this case which of the following statement are true. Is Huygen's principle valid for longitudinal sound waves? November 19, 2020 [...]
Consider sunlight incident on a slit of width 10^4 Å . The image seen through the slit shall
19
Nov
Consider sunlight incident on a slit of width 10^4 Å . The image seen through the slit shall Consider sunlight incident on a slit of width 10^4 Å . The image seen through the slit shall November 19, 2020 Category: Chapter 10 - Wave Optics , NCERT Exemplar Class 12 , Physics ,
A polaroid is placed in the path of the emergent ray at point P and rotated an axis passing through the centre and perpendicular to the plane of the polaroid.
19
Nov
A polaroid is placed in the path of the emergent ray at point P and rotated an axis passing through the centre and perpendicular to the plane of the polaroid. A polaroid is placed in the path of the emergent ray at point P and rotated an axis passing through the centre and perpendicular to [...]
Figure shows a standard two slit arrangement with slits S1,S2.P1,P2 are the two minima points on either side of P (Figure). At P2 on the screen, there is a hole and behind P2 is a second 2-slit arrangement with slits S3,S4 and a second screen behind them.
19
Nov
Figure shows a standard two slit arrangement with slits S1,S2.P1,P2 are the two minima points on either side of P (Figure). At P2 on the screen, there is a hole and behind P2 is a second 2-slit arrangement with slits S3,S4 and a second screen behind them. Figure shows a standard two slit arrangement with [...]
Consider a ray of light incident from air onto a slab of glass (refractive index n) of width d, at an angle θ . The phase difference between the ray reflected by the top surface of the glass and the bottom surface is
19
Nov
Consider a ray of light incident from air onto a slab of glass (refractive index n) of width d, at an angle θ . The phase difference between the ray reflected by the top surface of the glass and the bottom surface is at an angle θ . The phase difference between the ray reflected [...]
For the same objective, find the ratio of the least separation between two points to be distinguished by a microscope for light of 5000 Å and electrons accelerated through 100 V used as the illuminating substance.
19
Nov
For the same objective, find the ratio of the least separation between two points to be distinguished by a microscope for light of 5000 Å and electrons accelerated through 100 V used as the illuminating substance. find the ratio of the least separation between two points to be distinguished by a microscope for light of [...]
Can reflection result in plane polarised light if the light is incident on interface from the side with higher refractive index?
19
Nov
Can reflection result in plane polarised light if the light is incident on interface from the side with higher refractive index? Can reflection result in plane polarised light if the light is incident on interface from the side with higher refractive index? November 19, 2020 Category: Chapter 10 - Wave Optics , NCERT Exemplar Class [...]
What is the shape of the wavefront on earth for sunlight?
19
Nov
What is the shape of the wavefront on earth for sunlight? What is the shape of the wavefront on earth for sunlight? November 19, 2020 Category: Chapter 10 - Wave Optics , NCERT Exemplar Class 12 , Physics ,
A polaroid (I) is placed in front of a monochromatic source. Another polaroid (II) is placed in front of this polaroid (I) and rotated till no light passes. A third polaroid (III) is now placed in between (I) and (II). In this case, will light emerge from (II) . Explain.
19
Nov
A polaroid (I) is placed in front of a monochromatic source. Another polaroid (II) is placed in front of this polaroid (I) and rotated till no light passes. A third polaroid (III) is now placed in between (I) and (II). In this case, will light emerge from (II) . Explain. Fig. A ray incident from [...]
The human eye has an approximate angular resolution of ϕ=5.8×10^−4 rad and a typical photo printer prints a minimum of 300 dpi (dots per inch, =2.54cm). At what minimal distance ‘z’ should a printed page be held so that one does not see the individual dots is
19
Nov
The human eye has an approximate angular resolution of ϕ=5.8×10^−4 rad and a typical photo printer prints a minimum of 300 dpi (dots per inch, =2.54cm). At what minimal distance ‘z’ should a printed page be held so that one does not see the individual dots is =2.54cm). At what minimal distance 'z' should a [...]