1
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The phase difference between two waves giving rise to dark fringe in Young's double slit experiment is ( n is the integer)

A
zero
B
$(4 \mathrm{n}+1) \frac{\pi}{2}$
C
$(2 n-1) \pi$
D
$(2 n+1) \frac{\pi}{2}$
2
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A capillary tube stands with its lower end dipped into liquid for which the angle of contact is $90^{\circ}$. The liquid will

A
neither rise nor fall.
B
get depressed only.
C
rise only.
D
rise upto the top of the tube.
3
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A body is projected in vertically upward direction from the surface of the earth of radius ' $R$ ' into space with velocity ' $n V_{\mathrm{e}}$ ' $(\mathrm{n}<1)$. The maximum height from the surface of earth to which a body can reach is

A
$\frac{\mathrm{n}^2 \mathrm{R}}{\left(1-\mathrm{n}^2\right)}$
B
$\frac{\mathrm{n}^2 \mathrm{R}^2}{(1-\mathrm{n})}$
C
$\frac{n R^2}{\left(1+n^2\right)}$
D
$\frac{\mathrm{n}^2 \mathrm{R}^2}{(1+\mathrm{n})}$
4
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The angular momentum of the electron in the third Bohr orbit of hydrogen atom is ' $l$ '. Its angular momentum in the fourth Bohr orbit is

A
$4 l$
B
$\frac{4}{3} l$
C
$\frac{5}{4} l$
D
$\frac{3}{2} l$
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