1
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A particle is performing U.C.M. along the circumference of a circle of diameter 50 cm with frequency 2 Hz . The acceleration of the particle in $\mathrm{m} / \mathrm{s}^2$ is

A
$2 \pi^2$
B
$8 \pi^2$
C
$\pi^2$
D
$4 \pi^2$
2
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Find the wrong statement from the following about the equation of stationary wave given by $Y=0.04 \cos (\pi x) \sin (50 \pi t) \mathrm{m}$ where $t$ is in second. Then for the stationary wave.

A
Time period $=0.02 \mathrm{~s}$
B
Wavelength $=2 \mathrm{~m}$
C
Velocity $=50 \mathrm{~m} / \mathrm{s}$
D
Amplitude $=0.02 \mathrm{~m}$
3
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A convex lens of focal length ' $f$ ' is placed in contact with a concave lens of the same focal length. The equivalent focal length of the combination is

A
$f$
B
infinity
C
$\frac{f}{2}$
D
zero
4
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two light balls are suspended as shown in figure. When a stream of air passes through the space between them, the distance between the balls will

MHT CET 2019 2nd May Evening Shift Physics - Fluid Mechanics Question 87 English

A
remain same
B
increase
C
may increase or decrease, depending on speed of air
D
decrease
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