A. specific heat of mercury is less than water
B. specific heat of mercury is more than water
C. mercury has greater visibility than water
D. density of mercury is more than the water
✅ The correct answer is option C.
Physics MCQs
Out of the following pairs, which one does not have identical dimension?
A. Moment of inertia and moment of a force
B. Work and Torque
C. Angular momentum and Planck’s constant
D. Impulse and Momentum
✅ The correct answer is option A.
Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension?
A. Pressure and Young’s modules
B. Planck’s constant and Angular momentum
C. Impulse and moment of force
D. Force and rate of change of linear momentum
✅ The correct answer is option C.
Radio telescopes are better than optical telescopes because
A. they can detect faint galaxies which no optical telescope can
B. they can work even in cloudy conditions
C. they can work during the day and night
D. All of the above
✅ The correct answer is option D.
Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit
A. X-rays
B. ultraviolet light
C. visible light
D. radio waves
✅ The correct answer is option C.
Planets are
A. luminous heavenly bodies revolving around a star
B. non-luminous heavenly bodies
C. luminous heavenly bodies that twinkle
D. luminous heavenly bodies that do not twinkle
✅ The correct answer is option B.
Identify the vector quantity from the following
A. Heat
B. Angular momentum
C. Time
D. Work
✅ The correct answer is option B.
Pick out the scalar quantity
A. force
B. pressure
C. velocity
D. acceleration
✅ The correct answer is option B.
Magnetism at the centre of a bar magnet is
A. minimum
B. maximum
C. zero
D. minimum or maximum
✅ The correct answer is option C.
Rainbow is due to
A. absorption of sunlight in minute water droplets
B. diffusion of sunlight through water droplets
C. ionisation of water deposits
D. refraction and reflection of sunlight by water droplets
✅ The correct answer is option D.