Electromagnetism
Current Electricity
MCQ (Single Correct Answer)
Moving Charges and Magnetism
MCQ (Single Correct Answer)
Magnetism and Matter
MCQ (Single Correct Answer)
Electromagnetic Induction
MCQ (Single Correct Answer)
Alternating Current
MCQ (Single Correct Answer)
Electromagnetic Waves
MCQ (Single Correct Answer)
Modern Physics
Dual Nature of Radiation
MCQ (Single Correct Answer)
Semiconductor Devices and Logic Gates
MCQ (Single Correct Answer)
Communication Systems
MCQ (Single Correct Answer)
1
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

The dimension $$[\mathrm{ML}^{-1} \mathrm{~T}^{-2}]$$ is the physical quantity of

A
Pressure $$\times$$ Area
B
$$\mathrm{\frac{Force}{Pressure}}$$
C
Power $$\times$$ Time
D
Energy density
2
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

If units of mass, length and gravitational constant are chosen to fundamental units, the dimensions of time would be

A
$$ \mathrm{M}^{1 / 2} \mathrm{~L}^{1 / 2} \mathrm{G}^{-1 / 2} $$
B
$$ \mathrm{M}^1 \mathrm{~L}^{1 / 2} \mathrm{G}^2 $$
C
$$ \mathrm{M}^{-1 / 2} \mathrm{~L}^{3 / 2} \mathrm{G}^{-1 / 2} $$
D
$$ \mathrm{M}^{-1} \mathrm{~L}^3 \mathrm{G}^{-1} $$
3
COMEDK 2024 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the given dimensional formula represents heat capacity

A
$$\left[\mathrm{ML}^2 \mathrm{~T}^{-2} \mathrm{~K}^{-1}\right]$$
B
$$\left[\mathrm{ML}^2 \mathrm{~T}^{-1} \mathrm{~K}^{-1}\right]$$
C
$$\left[\mathrm{ML}^2 \mathrm{~T}^{-2} \mathrm{~K}^{-2}\right]$$
D
$$\left[\mathrm{MLT}^{-2} \mathrm{~K}^{-1}\right]$$
4
COMEDK 2024 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Find the value of '$$n$$' in the given equation $$P=\rho^n v^2$$ where '$$P$$' is the pressure, '$$\rho$$' density and '$$v$$' velocity.

A
$$\mathrm{n}=\frac{1}{2}$$
B
$$\mathrm{n}=1$$
C
$$\mathrm{n}=3$$
D
$$\mathrm{n}=2$$
COMEDK Subjects