Mock Test

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

Total Questions: 20

Q1. A fluid that follows Newton's law of viscosity is called a:

Non-Newtonian fluid Ideal fluid Newtonian fluid Viscous fluid
Q2. The resolving power of an optical instrument is inversely proportional to:

Wavelength of light Frequency of light Amplitude of light Intensity of light
Q3. If a source and observer are stationary relative to each other, the observed frequency is:

Higher than source frequency Lower than source frequency Equal to source frequency Zero
Q4. The Big Bang theory describes:

The formation of stars The death of stars The origin and evolution of the universe The lifecycle of planets
Q5. A bar magnet is dropped through a hollow copper tube. What will be the effect on its motion due to electromagnetic induction?

It will fall faster than in free fall. It will fall with uniform velocity. It will fall slower than in free fall. It will stop inside the tube.
Q6. Which planet has the strongest gravitational pull among the options?

Mercury Earth Jupiter Mars
Q7. The motion of a planet around the sun is an example of:

Simple Harmonic Motion Oscillatory motion Circular motion Elliptical motion (approximately)
Q8. The twin paradox arises from the consideration of:

Length contraction for both twins Time dilation for both twins The non-inertial nature of the traveling twin's journey The constancy of the speed of light
Q9. The binding energy of a nucleus is primarily due to which fundamental force?

Weak nuclear force Electromagnetic force Strong nuclear force Gravitational force
Q10. The expansion of a substance due to a change in temperature is usually associated with:

Decrease in kinetic energy of molecules Increase in kinetic energy of molecules Decrease in potential energy of molecules Increase in potential energy of molecules
Q11. Which type of memory is volatile and loses its data when power is removed?

ROM EEPROM RAM Flash memory
Q12. The Big Bang Theory is the leading scientific explanation for the origin of the universe because it is supported by:

Philosophical arguments Religious texts Empirical evidence and observations Speculative theories
Q13. Acceleration is the rate of change of:

Distance Speed Velocity Time
Q14. If the observer is moving away from a stationary sound source, the observed frequency will:

Increase Decrease Remain the same Be unpredictable
Q15. Which of the following logic gates is known as a universal gate?

AND gate OR gate NAND gate XOR gate
Q16. What is the theoretical process by which black holes lose mass called?

Accretion Hawking radiation Gravitational lensing Spaghettification
Q17. What is a 'rogue planet' in astrobiology?

A planet that orbits a binary star system A planet that has been ejected from its star system and drifts through interstellar space A planet with an unusually large moon A planet with extreme axial tilt
Q18. What is the primary limitation of using a simple RC low-pass filter for demodulating an FM signal?

It introduces significant phase distortion. Its output is not proportional to the instantaneous frequency. It is sensitive to amplitude variations in the received signal. It cannot handle high modulation indices.
Q19. The product of force and the time for which it acts is called:

Momentum Impulse Work Energy
Q20. What effect can a black hole have on light from a distant object?

It can make the object disappear It can bend or distort the light It can make the object brighter It has no effect on light

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