FDE EST Physics Past Paper | 21-04-2024

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FDE EST Physics Past Paper MCQs with Answers for Federal Directorate of Education teacher test preparation online.

FDE EST Physics Past Paper MCQs

Antonym of the word ORNATE ?
  1. Spartan
  2. Blemished
  3. Sturdy
  4. Counterfeit
Which of the following strategies is most suitable for introducing a lesson?
  1. Demonstration
  2. Questioning
  3. Narration
  4. Lecture
Electromagnetic waves are produced due to flow of which charges?
  1. +ve
  2. -ve
  3. Both A and B
  4. None
The Twin Paradox is a consequence of?
  1. Time dilation in special relativity
  2. Length contraction in special relativity
  3. Gravitational time dilation
  4. Relativistic effects on accelerated frames
The Compton effect is maximum at a scattering angle of?
  1. 0 degrees
  2. 45 degrees
  3. 90 degrees
  4. 180 degrees
The photoelectric effect occurs at energies?
  1. Less than 0.5 MeV
  2. Exactly 0.5 MeV
  3. More than 0.5 MeV
  4. Any energy level
The escape velocity of Neptune is approximately?
  1. 19.5 km/s
  2. 21.5 km/s
  3. 23.5 km/s
  4. 25.5 km/s
In p-type semiconductors, a trivalent impurity is added?
  1. Boron
  2. Phosphorus
  3. Arsenic
  4. Antimony
The conductivities of semiconductors range from?
  1. 10^2 to 10^5 ohm^-1 m^-1
  2. 10^6 to 10^9 ohm^-1 m^-1
  3. 10^-2 to 10^-5 ohm^-1 m^-1
  4. 10^-6 to 10^-9 ohm^-1 m^-1
The Compton shift is equal to the Compton wavelength at which angle?
  1. 0 degrees
  2. 45 degrees
  3. 90 degrees
  4. 180 degrees
What is the power factor for a pure capacitive circuit?
  1. 0
  2. 0.5
  3. 1
  4. -1
What is the relationship between voltage and current?
  1. Voltage and current are in phase
  2. Voltage leads current by 90 degrees
  3. Voltage lags current by 90 degrees
  4. Voltage and current are 180 degrees out of phase
What are the charge carriers in semiconductors?
  1. Electrons only
  2. Holes only
  3. Electrons and protons
  4. Electrons and holes
What will be the direction of the magnetic field around it?
  1. North to South
  2. South to North
  3. Clockwise
  4. Counter clockwise
When the current passing through an inductor is increased by 100 times, the energy stored in the inductor will increase by?
  1. 100 times
  2. 1,000 times
  3. 10,000 times
  4. 100,000 time
If the radii of two droplets are in the ratio of 2:3, then their terminal velocities will be in the ratio?
  1. 2:3
  2. 3:2
  3. 4:9
  4. 9:4
If the current is into the page and the wire is perpendicular to the page, then the magnetic field will be?
  1. Directed clockwise
  2. Directed counter clockwise
  3. Directed outward from the page
  4. Directed inward toward the page
What is the velocity required to put a satellite into orbit around the Earth?
  1. 5.8 km/s
  2. 7.8 km/s
  3. 9.8 km/s
  4. 11.8 km/s
If the lift is accelerated downward, what is the apparent weight experienced by an object inside the lift?
  1. m(g+a)
  2. m(g−a)
  3. m(g×a)
  4. m(g÷a)
If a positive charge is placed between two negative charges, the system will be?
  1. Stable
  2. Unstable
  3. Neutral
  4. None of the above
In the relation E = F/q , the charge q is?
  1. Always positive
  2. Always negative
  3. Can be positive or negative
  4. Always zero
Confining a wave to oscillate in one plane is called?
  1. Polarization
  2. Reflection
  3. Refraction
  4. Diffraction
If the power of a lens is 10 and it carries a single-mode index fiber with a ratio of 14000:23, then the focal length of the lens will be?
  1. 10 cm
  2. 20 cm
  3. 30 cm
  4. 40 cm
If the radius of the Earth is reduced to one-fourth of its original value, what will happen to the escape velocity?
  1. Halved
  2. Doubled
  3. Quadrupled
  4. No change
If the mass is doubled, what will happen to both angular and linear momentum?
  1. Halved
  2. Doubled
  3. Quadrupled
  4. No change
The efficiency of a Carnot engine will be maximum if?
  1. T2 is equal to zero
  2. T2 is equal to room temperature
  3. T2 is equal to absolute zero
  4. T2 is equal to the temperature of the source
If the temperature of the cold reservoir is 12°C and the temperature of the hot reservoir is 27°C, then the efficiency of the Carnot engine is?
  1. 2%
  2. 5%
  3. 10%
  4. 15%
If Cp = 10 and Cv = 7, then the value of R is?
  1. 3
  2. 5
  3. 7
  4. 10
The speed of sound in vacuum is?
  1. 0 m/s
  2. 343 m/s
  3. 1,480 m/s
  4. 3.00 x 10^8 m/s
If the source moves toward the observer, then the frequency?
  1. Decreases
  2. Increases
  3. Remains constant
  4. Fluctuates
What is the minimum number of diodes required for full-wave rectification?
  1. 1
  2. 2
  3. 3
  4. 4
For interference of light to occur, the light must be?
  1. Monochromatic
  2. Polychromatic
  3. Coherent
  4. Incoherent
In Young’s double-slit experiment, the center is always?
  1. Bright
  2. Dark
  3. Diffuse
  4. Variable
In the diffraction pattern of a single slit, the center is usually?
  1. Bright
  2. Dark
  3. Diffuse
  4. Variable
If an electron transitions from n=6 to n=7, the percentage increase in radius is approximately?
  1. 11%
  2. 22%
  3. 33%
  4. 44%
If the initial velocity is 40 m/s, time is 5 seconds, and acceleration is 10 m/s2, then the distance traveled is?
  1. 200 m
  2. 275 m
  3. 325 m
  4. 400 m
If the angle between the vector area and the electric field is 30∘, then the flux will be maximum when?
  1. √3/2
  2. 1/2
  3. 1/√2
  4. √2/2
A proton is moving in an electric field described by the potential V= x+6. What is the force experienced by the proton?
  1. F = dV/dx
  2. F = q. dv/dx
  3. F = −q. dv/dx
  4. F = −q. dv/dx + qE
The expression (1-v^2/c^2)^-0.25?
  1. Less than one
  2. Equal to one
  3. Greater than one
  4. Cannot be determined from the given information
If a star is moving away from an observer, the observed shift in the wavelength of its light is called?
  1. Blueshift
  2. Redshift
  3. Greenshift
  4. Yellowshift
If the capacitance C and resistance R of an RC circuit are given, what is the time constant (τ) of the circuit?
  1. τ=R+C
  2. τ=R−C
  3. τ=RC
  4. τ= R/C
The product of resistance (R) and capacitance (C), denoted as RC, has dimensions of?
  1. Voltage
  2. Current
  3. Charge
  4. Time
If light strikes the surface of glass with the equation r=r0 sin(ωt), the equation after reflection will be?
  1. r=r0 cos(ωt)
  2. r=r0 sin(ωt)
  3. r=r0 tan(ωt)
  4. r=r0 sec(ωt)
What is the purpose of using an umbrella in the rain?
  1. To make the rain heavier
  2. To make the rain lighter
  3. To protect oneself from getting wet
  4. To attract more rain
If there are 25 waves in a 5-second time period, what is the frequency of the waves?
  1. 1 Hz
  2. 5 Hz
  3. 10 Hz
  4. 25 Hz
How is the angle made by a vector with the x-axis typically denoted?
  1. α
  2. β
  3. θ
  4. ϕ

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