MHT CET 2023 9th May Morning Shift | Wave Optics Question 34 | Physics

In a diffraction pattern due to single slit of width '$$a$$', the first minimum is observed at an angle of $$30^{\circ}$$ when the light of wavelength $$5400 \mathop A\limits^o$$ is incident on the slit. The first secondary maximum is observed at an angle of $$\left(\sin 30^{\circ}=\frac{1}{2}\right)$$

$$\sin ^{-1}\left(\frac{3}{4}\right)$$

$$\sin ^{-1}\left(\frac{2}{3}\right)$$

$$\sin ^{-1}\left(\frac{1}{2}\right)$$

$$\sin ^{-1}\left(\frac{1}{4}\right)$$

MHT CET 2023 9th May Morning Shift

MCQ (Single Correct Answer)

-0

In a single slit experiment, the width of the slit is doubled. Which one of the following statements is correct?

The intensity and width of the central maximum are unaffected.

The intensity remains same and angular width becomes half.

The intensity and angular width both are doubled.

The intensity increases by a factor 4 and the angular width decreases by a factor of $$\frac{1}{2}$$.

MHT CET 2023 9th May Morning Shift

MCQ (Single Correct Answer)

-0

The rays of different colours fail to converge at a point after passing through a thick converging lens. This defect is called

spherical aberration

distortion

coma

chromatic aberration

MHT CET 2022 11th August Evening Shift

MCQ (Single Correct Answer)

-0

A parallel beam of monochromatic light falls normally on a single narrow slit. The angular width of the central maximum in the resulting diffraction pattern

decreases with increase of slitwidth

may increase or decrease

decreases with decrease of slitwidth

increases with increase in slitwidth

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