1
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+2
-0

The maximum value of $Z=5 x+4 y$, Subject to $y \leq 2 x, x \leq 2 y, x+y \leq 3, x \geq 0, y \geq 0$ is ........

A
14
B
12
C
13
D
18
2
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In amplitude modulation, the amplitude of carrier wave is $A_c$ and that of the modulating signal is $A_m$. In practice, the ratio of $A_m$ to $A_c$ is kept less than or equal to one, to avoid

A
distortion
B
attenuation
C
fading
D
noise
3
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A pipe open at both ends and a pipe closed at one end have same length. The ratio of frequencies of their $P^{\text {th }}$ overtone is

A
$\frac{p+1}{2 p}$
B
$\frac{p+1}{2 p+1}$
C
$\frac{2(p+1)}{2 p+1}$
D
$\frac{p}{2 p+1}$
4
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Glass has refractive index $\mu$ with respect to air and the critical angle for a ray of light going from glass to air is $\theta$. If a ray of light is incident from air on the glass with angle of incidence $\theta$, corresponding angle of refraction is

A
$\sin ^{-1}(\mu)$
B
$\sin ^{-1}\left(\frac{1}{\mu^2}\right)$
C
$\sin ^{-1}\left(\frac{1}{\sqrt{\mu}}\right)$
D
$\sin ^{-1}\left(\frac{1}{\mu}\right)$
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