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660+ A Level Physics Solved MCQs

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Uncategorized topics .

Chapters

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Chapter: Nuclear Physics
451.

At higher energy, the bodies have

A. small mass
B. large mass
C. zero mass
D. smaller weight
Answer» B. large mass
discuss
452.

Time taken by a radioactive substance to decay half is called

A. time delay
B. half life
C. time constant
D. half period
Answer» B. half life
discuss
453.

Most stable isotope in nature is of

A. iron-56
B. carbon-12
C. uranium-235
D. uranium-238
Answer» A. iron-56
discuss
454.

Activity of one decay per second is equal to

A. 1 Bq
B. 1 atm
C. 1 mol
D. 1 Cd
Answer» A. 1 Bq
discuss
455.

The greater the decay constant

A. the less the activity
B. the greater the activity
C. the greater the size
D. the less the size
Answer» B. the greater the activity
discuss
456.

Total amount of mass and energy together in a system is

A. increasing
B. decreasing
C. zero
D. constant
Answer» D. constant
discuss
457.

Process by which energy is released in sun is

A. fission
B. Haber's process
C. fusion
D. radioactivity
Answer» C. fusion
discuss
458.

Minimum energy required to pull nucleus apart is called

A. ionization energy
B. electron affinity
C. chemical energy
D. binding energy
Answer» D. binding energy
discuss
459.

Mass excess for U-235 is

A. 0.034 u
B. 0.043 u
C. 0.05 u
D. 0.06 u
Answer» B. 0.043 u
discuss
460.

As compared to proton, mass of neutron is

A. 10% greater
B. 5% greater
C. 1% greater
D. 0.1% greater
Answer» D. 0.1% greater
discuss
461.

1 mole of uranium-238 has potential to emit total energy equal to about

A. 109 J
B. 1010 J
C. 1011 J
D. 1012 J
Answer» C. 1011 J
discuss
462.

If energy is released from a system, it's mass

A. decreases
B. increases
C. constant
D. zero
Answer» A. decreases
discuss
463.

New nucleus after alpha particle decays, is called

A. parent nucleus
B. daughter nucleus
C. decayed nucleus
D. undecayed nucleus
Answer» B. daughter nucleus
discuss
464.

If nucleus is formed from separate nucleons, then energy is

A. gained
B. released
C. converted
D. absorbed
Answer» B. released
discuss
Chapter: Oscillations
465.

Maximum displacement from equilibrium position is

A. frequency
B. amplitude
C. wavelength
D. period
Answer» B. amplitude
discuss
466.

Displacement-time graph depicting an oscillatory motion is

A. cos curve
B. sine curve
C. tangent curve
D. straight line
Answer» B. sine curve
discuss
467.

In s.h.m, velocity at equilibrium position is

A. minimum
B. constant
C. maximum
D. zero
Answer» C. maximum
discuss
468.

Natural frequency of a guitar string can be changed by changing it's

A. area
B. diameter
C. length
D. stiffness
Answer» C. length
discuss
469.

Over-damping results in

A. slower return to equilibrium
B. faster return to equilibrium
C. equilibrium is never achieved
D. arrhythmic return to equilibrium
Answer» A. slower return to equilibrium
discuss
470.

Our eyes detect the oscillations up to

A. 8 Hz
B. 9 Hz
C. 6 Hz
D. 5 Hz
Answer» D. 5 Hz
discuss
471.

For s.h.m, maximum speed is proportional to

A. wavelength
B. acceleration
C. time
D. frequency
Answer» D. frequency
discuss
472.

A force that acts to return the mass to it's equilibrium position is called

A. frictional force
B. restoring force
C. normal force
D. contact force
Answer» B. restoring force
discuss
473.

In cars, springs are damped by

A. shock absorbers
B. engine
C. tyres
D. brake pedals
Answer» A. shock absorbers
discuss
474.

If time period of an oscillation is 0.40 s, then it's frequency is

A. 2 Hz
B. 2.5 Hz
C. 3 Hz
D. 3.5 Hz
Answer» B. 2.5 Hz
discuss
475.

As amplitude of resonant vibrations decreases, degree of damping

A. increases
B. remains same
C. decreases
D. varies
Answer» C. decreases
discuss
476.

Oscillations become damped due to

A. normal force
B. friction
C. tangential force
D. parallel force
Answer» B. friction
discuss
477.

In s.h.m, object's acceleration depends upon

A. displacement from equilibrium position
B. magnitude of restoring force
C. both A and B
D. force exerted on it
Answer» C. both A and B
discuss
478.

angular frequency of s.h.m is equal to

A. 2π
B. 2πf
C. 2f
D. 1⁄T
Answer» B. 2πf
discuss
479.

For a resonating system it should oscillate

A. bound
B. only for some time
C. freely
D. for infinite time
Answer» C. freely
discuss
480.

Velocity at equilibrium position is

A. constant
B. minimum
C. maximum
D. zero
Answer» C. maximum
discuss
481.

If the swing moves from right to left, then velocity is

A. negative
B. positive
C. constant
D. zero
Answer» A. negative
discuss
482.

Acceleration is directly related to

A. displacement
B. negative of displacement
C. velocity
D. negative of speed
Answer» B. negative of displacement
discuss
483.

Gradient of velocity-time graph gives

A. force
B. frequency
C. wavelength
D. acceleration
Answer» D. acceleration
discuss
484.

Magnitude of gradient of a-x graph is {{}}

A. ω
B. ω2
C. ω⁄2
D. ω3
Answer» B. ω2
discuss
485.

Potential energy of system is maximum at

A. extreme position
B. mean position
C. in between extreme and mean position
D. moderate position
Answer» A. extreme position
discuss
486.

In s.h.m, acceleration is always directed towards the

A. equilibrium position
B. mean position
C. tangent to the motion
D. downwards
Answer» A. equilibrium position
discuss
487.

Number of oscillations per unit time is

A. amplitude
B. wavelength
C. frequency
D. period
Answer» C. frequency
discuss
488.

When displacement x = 0, then kinetic energy of system is

A. minimum
B. maximum
C. constant
D. zero
Answer» B. maximum
discuss
489.

Energy of a system executing s.h.m is

A. increasing
B. decreasing
C. constant
D. variable
Answer» C. constant
discuss
490.

Oscillatory motion has a

A. straight lined graph
B. randomly lined graph
C. sinusoidal graph
D. asymptotic graph
Answer» C. sinusoidal graph
discuss
491.

During one oscillation, phase of oscillation changes by

A. π rad
B. π⁄2 rad
C. 2π rad
D. 4π rad
Answer» C. 2π rad
discuss
492.

If an object moves back and forth repeatedly around a mean position it is called

A. oscillating
B. revolving
C. rotating
D. motion
Answer» A. oscillating
discuss
Chapter: Physics Problems AS Level
493.

Terminal potential difference of battery depends on

A. current
B. temperature
C. both A and B
D. resistance of external resistor
Answer» D. resistance of external resistor
discuss
494.

Systematic errors occur due to

A. overuse of instruments
B. careless usage of instruments
C. both A and B
D. human sight
Answer» C. both A and B
discuss
495.

In cells, internal resistance is due to

A. components inside
B. chemicals within
C. lead blocks
D. graphite
Answer» B. chemicals within
discuss
496.

Measurement which is close to the true value is

A. accurate
B. average
C. precise
D. error
Answer» A. accurate
discuss
497.

A train with a whistle that emits a note of frequency 800 Hz is approaching an observer at speed of 60 m s-1, the frequency of note heard by observer is {{}}

A. 978 Hz
B. 980 Hz
C. 950 Hz
D. 900 Hz
Answer» A. 978 Hz
discuss
498.

Smallest division on a rule is of

A. 1 cm
B. 1 m
C. 1 mm
D. 10 cm
Answer» C. 1 mm
discuss
499.

If the two quantizes are inversely proportional then graph between y and 1/x gives

A. straight line cutting the axis
B. straight line through origin
C. a parabolic curve
D. a hyperbolic curve
Answer» B. straight line through origin
discuss
500.

Systematic errors can be removed by

A. buying new instrument
B. breaking the instrument
C. dusting the instrument
D. recalibrating the instrument
Answer» D. recalibrating the instrument
discuss

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