MCAT Practice MCQs Physics With Answer Keys Unit No.6 & 7. MCAT Physics Practice Multiple Choice Questions and Answers for Units No. 6 and 7 This month, we will be covering Unit 6, which focuses on energy, work, and thermal equilibrium. If you haven’t done so before, you need to read the first two sections. Before we start working through these practise problems, let’s begin by making sure we have a solid understanding of these three subjects by first reviewing their definitions:
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Practice MCQs MCAT Part 1 Unit 6 & 7 with keys:
There are several resources that may be used to prepare for the MDCAT entrance test, including practise MCAT Physics MCQs with solutions, MCAT Physics practise problems, and FSC chapters 6 and 7.
- Which one is the example of longitudinal waves?
(A) Sound wave
(B) Ultrasonic
(C) Infrasonic
(D) All of these
2. Shock waves are produced by objects
(A) Carrying electronic charge
(B) Vibrating with frequency more than 20 KHz
(C) Vibrating with large amplitude
(D) Moving with speed greater than the speed of sound in that medium
3. Mechanical waves on the surface of water
(A) Transverse
(B) Longitudinal
(C) Torsional
(D) Both transverse and longitudinal
4. Which of the following waves do not carry energy away from source
(A) Transverse traveling waves
(B) Standing waves
(C) Longitudinal waves
(D) EM waves
5. In sound waves during compression
(A) Density of medium is maximum
(B) Pressure of medium is Maximums
(C) Density of medium is minimum
(D) Both A and B
6. Sound waves produced by guitar are type
(A) Longitudinal stationer
(B) Transverse stationary
(C) Transverse progressive
(D) Longitudinal progressive
Additional Multiple-Choice Questions:
7· The value of constant ‘y’ for mono atomic gas is
(A) 1.40
(B) 1.67
(C) 1.28
(D) 1.29
8. Which of the following have maximum audit able range?
(A) Dolphin
(B) Dog
(C) Cat
(D) Bat
9. If the number of loops of stationary wavc3 are increasing then:
(A) Wavelengths gets higher
(B) Wavelengths gets shorter
(C) Wavelengths become constants
(D) None of them
10. When a light signal travels along the length of the optical fiber, the power lost by it is due to:
(A) Reflection
(B) Refraction
(C) Scattering and absorption.
(D) Diffraction
MCAT MCQs Pre:
11. Optical fiber carries data in the Form:
(A) Light signals
(B) Sound signals
(C) A wave
(D) A particle
12. The angle of incidence at which angle of refraction becomes 90′ is called:
(A) Incident angle
(B) Angle of refraction
(C) Critical angle
(D) Phase angle
13. A grating with high resolving power can distinguish……… difference in
(A) Smaller, amplitude
(B) Greater. Wavelength
(C) Smaller, wavelength
(D) Greater, intensity
14. The speed of light in a medium depends upon:
(A) Its wavelength
(B) Its Frequency
(C) Refractive index
(D) All of these
15. For which color of light the refractive index of glass is larger
(A) Red
(B) Green
(C) Blue
(D) Violet
Pre MCQs :
16. A my d light passing from a rarer to a denser medium
(A) Bends towards normal
(B) Bends away from normal
(C) Suffers no change in direction
(D) None of these
17. In case of reflection of ray within a denser medium, angle of incident is
Angle of reflection .
(A) Greater then
(B) Smaller then
(C) Equal to
(D) None of these
18. A train while moving whistling moves with a speed thrice the speed of sound away from a
Stationary listener. The frequency of sound wave heard by the listener will become
(A) Three times
(B) One third
(C) 4 times
(D) One fourth
19. A prism splits a beam of white light into seven component colors. This is so become
(A) Phase of different colors is different
(B) Amplitude of different colors is different
(C) Energy of different colors is different
(D) Velocity of different colors is different
20. Stars twinkle due to:
(A) The fact that they do not emit light continuously
(B) The refractive index of earth’s atmosphere fluctuates
(C) The star’s atmosphere absorbs its light intermittently
(D) None of these
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