Chapter 10 – Wave Optics
In a Young’s double-slit experiment, the slits are separated by 0.28 mm and the screen is placed 1.4 m away. The distance between the central bright fringe and the fourth bright fringe is measured to be 1.2 cm. Determine the wavelength of light used in the experiment.
20
Nov
In a Young’s double-slit experiment, the slits are separated by 0.28 mm and the screen is placed 1.4 m away. The distance between the central bright fringe and the fourth bright fringe is measured to be 1.2 cm. Determine the wavelength of light used in the experiment. and (b) Refracted light? Refractive index of water [...]
(a) The refractive index of glass is 1.5. What is the speed of light in glass? (Speed of light in vacuum is 3.0 × 10^8 ms^−1 ) (b) Is the speed of light in glass independent of the colour of light? If not, which of the two colours red and violet travels slower in a glass prism?
20
Nov
(a) The refractive index of glass is 1.5. What is the speed of light in glass? (Speed of light in vacuum is 3.0 × 10^8 ms^−1 ) (b) Is the speed of light in glass independent of the colour of light? If not, which of the two colours red and violet travels slower in a [...]
What is the shape of the wavefront in each of the following cases ? (a) Light diverging from a point source. (b) Light emerging out of a convex lens when a point source is placed at its focus. (c) The portion of the wavefront of light from a distant star intercepted by the Earth.
19
Nov
What is the shape of the wavefront in each of the following cases ? (a) Light diverging from a point source. (b) Light emerging out of a convex lens when a point source is placed at its focus. (c) The portion of the wavefront of light from a distant star intercepted by the Earth. A [...]
Monochromatic light of wavelength 589 nm is incident from air on a water surface. What are the wavelength, frequency and speed of (a) Reflected, and (b) Refracted light? Refractive index of water is 1.33.
19
Nov
Monochromatic light of wavelength 589 nm is incident from air on a water surface. What are the wavelength, frequency and speed of (a) Reflected, and (b) Refracted light? Refractive index of water is 1.33. and (b) Refracted light? Refractive index of water is 1.33. frequency and speed of (a) Reflected Monochromatic light of wavelength 589 [...]
A compound microscope consists of an objective lens of focal length 2.0cm and an eyepiece of focal length 6.25cm separated by a distance of 15cm. How far from the objective should an object be placed in order to obtain the final image at: (a) the least distance of distinct vision (25cm), and (b) at infinity? What is the magnifying power of the microscope in each case?
19
Nov
A compound microscope consists of an objective lens of focal length 2.0cm and an eyepiece of focal length 6.25cm separated by a distance of 15cm. How far from the objective should an object be placed in order to obtain the final image at: (a) the least distance of distinct vision (25cm), and (b) at infinity? [...]
For light diverging from a point source 1. the wavefront in spherical. 2. the intensity decreases in proportion to the distance squared.
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Nov
For light diverging from a point source 1. the wavefront in spherical. 2. the intensity decreases in proportion to the distance squared. For light diverging from a point source 1. the wavefront in spherical. 2. the intensity decreases in proportion to the distance squared. November 19, 2020 Category: Chapter 10 - Wave Optics , NCERT [...]
Consider the diffraction pattern for a small pinhole. As the size of the hole is increased
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Nov
Consider the diffraction pattern for a small pinhole. As the size of the hole is increased Consider the diffraction pattern for a small pinhole. As the size of the hole is increased November 19, 2020 Category: Chapter 10 - Wave Optics , NCERT Exemplar Class 12 , Physics ,
Consider sunlight incident on a pinhole of width 10^3 Å. The image of the pinhole seen on a screen shall be
19
Nov
Consider sunlight incident on a pinhole of width 10^3 Å. The image of the pinhole seen on a screen shall be Consider sunlight incident on a pinhole of width 10^3 Å. The image of the pinhole seen on a screen shall be November 19, 2020 Category: Chapter 10 - Wave Optics , NCERT Exemplar Class [...]
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 ,