1
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

In Young’s double slit experiment, the separation between the slits is halved and the distance between the screen is doubled. The fringe width is

A
unchanged
B
halved
C
doubled
D
quadrupled
2
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

In a diffraction pattern due to a single slit of width $$a$$, the first minimum is observed at an angle $$30 \Upsilon$$ when light of wavelength $$500 \mathrm{~nm}$$ is incident on the slit. The first secondary maximum is observed at an angle of

A
$$\sin ^{-1}\left(\frac{1}{2}\right)$$
B
$$\sin ^{-1}\left(\frac{3}{4}\right)$$
C
$$\sin ^{-1}\left(\frac{1}{4}\right)$$
D
$$\sin ^{-1}\left(\frac{2}{3}\right)$$
AP EAPCET Subjects
EXAM MAP