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

A charged particle is subjected to acceleration in a cyclotron which consists of two dees ' $\mathrm{D}_1$ ' and ' $D_2$ '. The charged particle undergoes increase in its speed.

A
inside $\mathrm{D}_1, \mathrm{D}_2$ and the gap between dees.
B
only inside $\mathrm{D}_1$.
C
only in the gap between $\mathrm{D}_1$ and $\mathrm{D}_2$.
D
only inside $\mathrm{D}_2$.
EXAM MAP