Motion in a Plane Class 11 NEET Questions. We covered all the Motion in a Plane Class 11 NEET Questions in this post for free so that you can practice well for the exam.
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MCQ on Motion in a Plane for NEET Students
Huygens’ principle of secondary wavelets can NOT be used to
(A) deduce the laws of reflection of light.
(B) deduce the laws of refraction of light.
(C) explain the transverse nature of light waves.
(D) predict the location of a wavefront as time passes.
Option c – explain the transverse nature of light waves.
In Young’s double-slit experiment, if the superimposing waves have amplitude a and intensity I, then the average intensity of the light in the fringe pattern formed on a screen will be
(A) 6I
(B) 4I
(C) 2I
(D) I/2
Option c – 2I
An open organ pipe has a length of 4 cm. The highest harmonic of such a tube that is in the audible range (20-20000 Hz) is (Given: the speed of sound in air is 340 m/s)
(A) 4
(B) 5
(C) 6
(D) 8
Option a – 4
The phenomenon of beats can take place ………
(A) for sound waves only
(B) for transverse waves only
(C) for longitudinal waves only
(D) for both longitudinal and transverse waves
Option d – for both longitudinal and transverse waves
By a change of current from 6 to 10 amperes in 0.2 seconds, the self-induced emf is 8 volts. The change in the energy of the magnetic field of a coil will be
(A) 15 J
(B) 12.8 J
(C) 7.5 J
(D) 5.9 J
Option b – 12.8 J
A list of the electromagnetic spectrum and its mode production is given below. Which one does not match?
(A) Infra-red – Vibration of atoms and molecules
(B) X-rays – Coolidge tube.
(C) Ultraviolet – Magnetron valve.
(D) Gamma rays – Radioactive decay of the nucleus.
Option c – Ultraviolet – Magnetron valve.
An electron beam accelerated through 1 kV is incident on a metallic foil. The distance between the arrays of atoms of the metal is 0.9 Å. What is the angle of diffraction for the first maximum?
(A) 25.5°
(B) 36.7°
(C) 42°
(D) 56.8°
Option a – 25.5°
A binary star system consists of two stars. One star has twice the mass of the other. If the star rotates about its common center of mass, which of the following statement is correct?
(A) Both stars have the same linear speed.
(B) Star having a smaller mass has twice the angular momentum compared to a heavier star.
(C) Star having a larger mass has thrice the angular momentum compared to a lighter star.
(D) Both the stars have the same angular momentum.
Option b – Star having a smaller mass has twice the angular momentum compared to a heavier star.
Two small conducting spheres of equal radius have charges +10 µC and -20 μC respectively and are placed at a distance R from each other experiencing force F₁. If they are brought in contact and separated to the same distance, they experience force F2. The ratio of F₁ to F₂ is
(A) 1 : 8
(B) – 8 : 1
(C) 1 : 2
(D) – 2 : 1
Option b – – 8 : 1
The angular momentum of a body is defined as the product of ……….
(A) linear velocity and angular velocity
(B) moment of inertia and angular velocity
(C) mass and angular velocity
(D) centripetal force and radius
Option b – moment of inertia and angular velocity
The image formed by ………. is real and enlarged.
(A) the lens of a focal length of 20 cm
(B) spherical mirror of magnification 3
(C) the objective of the compound microscope
(D) the objective of retracting the telescope
Option c – the objective of the compound microscope
A Force of 2 N is applied on a stationary body of mass 10 kg. The work done in 3rd second is
(A) 3 joule
(B) 2 joule
(C) 4 joule
(D) 1 joule
Option d – 1 joule
The shear modulus of a liquid is ……….
(A) zero
(B) unity
(C) infinity
(D) greater than zero but less than one
Option a – zero
If the voltage across a bulb rated 220 volt-60 watt drops by 4 % of its rated value, the percentage of the rated value by which the power would decrease is
(A) 4%
(B) 2%
(C) 8%
(D) 10%
Option c – 8%
In double refraction
(A) only the ordinary ray is polarised.
(B) only the extraordinary ray is polarised.
(C) both ordinary and extraordinary rays are polarised.
(D) neither ordinary ray nor extraordinary ray is polarised.
Option c – both ordinary and extraordinary rays are polarised.
The correct order in which the dimension of time increases in the following physical quantities is (i) Stefan’s coefficient (ii) Coefficient of volume expansion (iii) Work (iv) Velocity gradient
(A) (ii), (iv), (iii), (i)
(B) (i), (ii), (iii), (iv)
(C) (iv), (iii), (ii), (i)
(D) (i), (iii), (iv), (ii)
Option d – (i), (iii), (iv), (ii)
A thermodynamic process in which zero work is done on or by the gas is …………
(A) isothermal process
(B) adiabatic process
(C) isochoric process
(D) isobaric process
Option c – isochoric process
Two coils of self-inductance 4 mH and 9 mH are placed so that the effective flux in one coil is half-linked with the other. The mutual inductance between these coils is
(A) 3 mH
(B) 10 mH
(C) 6 mH
(D) 4 mH
Option a – 3 mH
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