MEDIUM
12th West Bengal Board
IMPORTANT
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Give two differences between fringes formed in single slit diffraction and Young's double-slit experiment. 

Important Questions on Wave Optics

MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 17 - Wave Optics>EXERCISE 17>Q 38
What changes in the diffraction pattern of a single slit will you observe, when the monochromatic source of light is replaced by a source of white light? 
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 17 - Wave Optics>EXERCISE 17>Q 39
In a single slit diffraction pattern, how is the width of central bright maximum changes when the slit width is decreased,
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 17 - Wave Optics>EXERCISE 17>Q 39

In a single slit diffraction pattern, how does the angular width of central maximum change, when the distance between the slit and screen is increased?

EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 17 - Wave Optics>EXERCISE 17>Q 39

In a single slit diffraction pattern, how does the angular width of central maximum change when light of smaller wavelength is used? Justify your answer in each case.

MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 17 - Wave Optics>EXERCISE 17>Q 40
Define resolving power of a compound microscope. On what factors does it depend ?
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 17 - Wave Optics>EXERCISE 17>Q 41
If the angle between the axis of polariser and the analyser is 45°, write the ratio of the intensities of original light and the transmitted light after passing through the analyser.
HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 17 - Wave Optics>EXERCISE 17>Q 42

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

MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 17 - Wave Optics>EXERCISE 17>Q 43
In what way is a plane polarized light different from an  unpolarised light?