Mock Test

Exam: RRB Group D Subject: General Science Topic: Physics

Total Questions: 20

Q1. Viscosity is a property that relates to:

Surface tension Density Shear stress and shear rate Boiling point
Q2. In quantum mechanics, a wave function (ψ) describes the state of a quantum system. The square of the wave function (|ψ|²) represents:

The energy of the particle The momentum of the particle The probability density of finding the particle at a given point The velocity of the particle
Q3. The phenomenon where a changing magnetic field induces an electric current in a nearby conductor is called:

Electrostatic induction Electromagnetic induction Magnetic resonance Hall effect
Q4. The escape velocity from the Earth's surface is approximately:

1.4 km/s 11.2 km/s 50 km/s 100 km/s
Q5. The commutation relation between the position operator (x) and the momentum operator (px) in quantum mechanics is:

[x, px] = 0 [x, px] = iħ [x, px] = -iħ [x, px] = ħ
Q6. Which of the following represents heat transfer?

W J K Pa
Q7. The value of acceleration due to gravity 'g' decreases with:

Increase in altitude Decrease in altitude Rotation of the Earth Both a and c
Q8. The weight of an object on the surface of the Earth is due to:

Inertia Centripetal force Gravitational force exerted by the Earth Magnetic force exerted by the Earth
Q9. Which of the following effects is NOT directly related to thermal expansion?

Bursting of pipes in winter The bending of a bimetallic strip The working of a mercury thermometer The boiling of water
Q10. What is the nature of the magnetic field produced by a current-carrying toroidal coil?

Uniform only inside the toroid Uniform everywhere Zero everywhere inside the toroid Non-uniform inside and uniform outside
Q11. In a step-down transformer, the voltage in the secondary coil is:

Higher than the primary coil Equal to the primary coil Lower than the primary coil Zero
Q12. Which instrument is used to observe black holes indirectly?

Optical telescope Radio telescope X-ray telescope All of the above
Q13. Kinetic energy is the energy of:

Position Motion Chemical bonds Temperature
Q14. Which of the following is a characteristic of photons?

They have mass They travel at the speed of light They have charge They can be deflected by magnetic fields
Q15. A transformer works on the principle of:

Static electricity Electrolysis Electromagnetic induction Rectification
Q16. Which type of memory is volatile and loses its data when power is removed?

ROM EEPROM RAM Flash memory
Q17. A light wave passes from a medium with refractive index n1 to a medium with refractive index n2. If n1 > n2, what happens to the speed and wavelength of the light wave?

Speed increases, wavelength increases Speed decreases, wavelength decreases Speed increases, wavelength decreases Speed decreases, wavelength increases
Q18. Nuclear fusion is the process where:

Heavy nuclei split Light nuclei combine Atoms emit light Electrons change orbits
Q19. What is the study of life in extreme environments on Earth called?

Paleontology Ecology Extremology Marine Biology
Q20. The Pauli Exclusion Principle states that no two identical fermions can occupy the same quantum state simultaneously. Electrons are:

Bosons Fermions Photons Quarks

Seamless prep with the tools you already use.

Study across devices, save bookmarks, get smart reminders, and track progress—so your mock tests and AI plans stay in sync.

Start free Browse exams

Elevate your prep today

Streamline practice, track weak topics, and improve faster with AI-guided revision. Try Meltwish free.

Create Free Account