1
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
For a common emitter transistor configuration the ratio of $\frac{\mathrm{I}_{\mathrm{C}}}{\mathrm{I}_{\mathrm{E}}}=0.96$, then the current gain in this configuration is
A
6
B
12
C
24
D
48
2
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

A stone is thrown upward with a speed 'u' from the top of a tower reaches the ground with velocity ' $3 u$ '. The height of the tower is ( $g=$ acceleration due to gravity)

A
$\frac{3 u^2}{g}$
B
$\frac{4 u^2}{g}$
C
$\frac{6 u^2}{g}$
D
$\frac{9 u^2}{g}$
3
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

A metal surface is illuminated by light of two different wavelengths 207 nm and 414 nm . The maximum speeds of photoelectrons corresponding to these wavelengths are $\mathrm{u}_1$ and $\dot{u}_2$ respectively with $u_1: u_2=2: 1$. The work function of the metal is $(\mathrm{hc}=1242 \mathrm{eV} \mathrm{nm})$

A
1.6 eV
B
2.0 eV
C
2.4 eV
D
3.0 eV
4
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

In thermodynamic process, which of the following statements is not true?

A
In an adiabatic process, the system is insulated from the surroundings.
B
In an isochoric process, the pressure remains constant.
C
In an isothermal process, the temperature remains constant.
D
In an adiabatic process, $\mathrm{pv}^\gamma=$ constant.
EXAM MAP