Class 12 Physics

Vidya01 Vats

Asked: January 11, 2025In: Class 12 Physics

In a single-slit diffraction experiment, the width of the slit is reduced to half its original width. How would this affect the size and intensity of the central maxima?

On reducing the size of slit to one-half, the size of central maximum will be doubled and the intensity will become 1/4 th of its previous value. Class 12 Physics Chapter 10 Wave Optics Session 2024-2025.

Vidya01 Vats

Asked: January 10, 2025In: Class 12 Physics

For a given single-slit, the diffraction pattern is obtained on a fixed screen first by using red light and then with blue light. In which case, will the central maxima, in the observed diffraction pattern, have a larger angular width?

For blue light the angular width of central diffraction maximum is more than that for red light. Class 12 Physics Chapter 10 Wave Optics Session 2024-2025.

Vidya01 Vats

Asked: January 10, 2025In: Class 12 Physics

A parallel beam of monochromatic light falls normally on a single narrow slit. How does the angular width of the principal maximum in the resulting diffraction pattern depend on width of the slit?

For diffraction at a single-slit the angular width of the principal maximum is inversely proportion to the width of the slit i.e., angular width θα 1/a . Class 12 Physics Chapter 10 Wave Optics Session 2024-2025.

Vidya01 Vats

Asked: January 10, 2025In: Class 12 Physics

When light travels from a rarer to a denser medium, the speed of light decreases. Does the reduction in speed imply a reduction in the energy?

No, reduction in speed on passing from a rarer to a denser medium does not imply a reduction in energy of light because the frequency of light remains unchanged and the energy of a light photon depends only on its ...

Vidya01 Vats

Asked: January 10, 2025In: Class 12 Physics

How does the fringe width in Young’s double-slit experiment change when the distance of separation ‘D’ between the slits and screen is doubled?

The fringe width is doubled because fringe width ‘ẞ’ is directly proportional to the distance of separation ‘D’ between the slits and screen. Class 12 Physics Chapter 10 Wave Optics Session 2024-2025.

Category: Class 12 Physics

In a single-slit diffraction experiment, the width of the slit is reduced to half its original width. How would this affect the size and intensity of the central maxima?

For a given single-slit, the diffraction pattern is obtained on a fixed screen first by using red light and then with blue light. In which case, will the central maxima, in the observed diffraction pattern, have a larger angular width?

A parallel beam of monochromatic light falls normally on a single narrow slit. How does the angular width of the principal maximum in the resulting diffraction pattern depend on width of the slit?

When light travels from a rarer to a denser medium, the speed of light decreases. Does the reduction in speed imply a reduction in the energy?

How does the fringe width in Young’s double-slit experiment change when the distance of separation ‘D’ between the slits and screen is doubled?

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