mbse.edu.in State Technical Entrance Exam Physics Question Paper : Mizoram Board of School Education
Organisation : Mizoram Board of School Education
Document Type : Question Paper
Exam : State Technical Entrance Examination
Subject : Physics
Website : mbse.edu.in/about-mbse/Question_paper.html
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State Technical Entrance Examination Question Papers Physics :
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2012 https://www.pdfquestion.in/uploads/7299-Physics_2012.pdf
MBSE State Technical Entrance Physics Model Paper
1. A body begins to slide over the surface of another when pulled with a force of 10N. If we pull with a force of 5N, the force of friction that will come into play is
(A) Zero (B) 0.5N
(C) 50N (D) 5N
Related : Mizoram Board of School Education State Technical Entrance Exam Biology Question Paper : www.pdfquestion.in/7294.html
2. The temperature of sink and source of a Carnot engine are 300K and 400K respectively. Its efficiency is
(A) 100% (B) 75%
(C) 33.3% (D) 25%
3. Width of the slits in Young’s double slit experiment are in the ratio 4:1. Then the ratio of the amplitude of the two waves is
(A) 2:1 (B) 1:2
(C) 4:1 (D) 1:4
4. Diode can be used as
(A) Oscillator (B) Rectifier
(C) Amplifier (D) Modulator
5. An ideal gas is one which obeys
(A) Boyle’s law only (B) Avogadro’s law
(C) Boyle’s law and Charles law (D) Charles law only
6. Which of the following law is applicable for determining the apparent change in the frequency, when a source and observer are in relative motion ?
(A) Kepler’s law (B) Doppler’s law
(C) Newton’s law (D) Huygen’s law
7. The de-Broglie wavelength of electrons, when accelerated through a potential difference of 100 V will be
(A) 10A (B) 12. 27 A
(C) 1.227 A (D) 1A
8. Which of the following is not a unit of time ?
(A) Hour (B) Nanosecond
(C) Microsecond (D) Light year
9. Two bodies of equal masses (m1=m2) moving along same straight line with velocities 3m/s and -5m/s respectively collide elastically. Their velocities after the collision will be respectively
(A) 4m/s for both (B) -3m/s and 5m/s
(C) -4m/s and 4m/s (D) -5m/s and 3m/s
14. If escape velocity of earth is 11.2 km/s, then escape velocity from a planet whose mass and radius are 9 times and 1/4 times respectively that of earth is
(A) 11.2 km/s (B) 22.4 km/s
(C) 44.8 km/s (D) 67.2 km/s
18. Which of the following is most elastic ?
(A) Glass (B) Steel
(C) Sponge (D) Rubber
19. What type of vibrations are produced in a sitar wire ?
(A) Progressive transverse (B) Progressive longitudinal
(C) Stationary longitudinal (D) Stationary transverse
20. To avoid any damage in Light Emitting Diode (LED), resistor must be used in
(A) Parallel with LED (B) Series with LED
(C) Series and Parallel combination with LED (D) None of the above
21. Figure gives the electric lines of force due to two charges q1 and q2. What are the signs of the two charges ?
(A) Both are positive (B) Both are negative
(C) q1 is positive but q2 is negative (D) q1 is negative but q2 is positive
24. The electric strength of air is 5 × 106 N/C. The largest charge that a metallic sphere of 3mm radius can hold is
(A) 5nC (B) 3nC
(C) 15nC (D) 1.6nC
25. If the distance between the earth and the sun becomes half of its present value, the number of days in a year would have been
(A) 64.5 (B) 129
(C) 182.5 (D) 730
27. Identify the pair, whose dimensions are equal
(A) Torque and work (B) Stress and energy
(C) Force and stress (D) Force and work
28. Displacement current ID is a current
(A) Which flows across a resistor (B) Which flows across an inductor
(C) Which flows across the connecting wires in a circuit (D) Which flows between the plates of a capacitor
30. When an object is placed between focus F and centre of curvature C of a concave mirror, the image formed will be
(A) Real, inverted and diminished (B) Virtual, erect and diminished
(C) Real, inverted and enlarged (D) Virtual, erect and enlarged
31. In a transformer, number of turns in the primary coil is 140 and that in the secondary is 280. If current in the primary is 4A, then that in secondary is
(A) 4A (B) 2A
(C) 6A (D) 10A
32. A myopic person’s far point is 2m. The power of the lens required for him to see distant objects clearly is
(A) -0.5 D (B) 0.5 D
(C) 2 D (D) -1.5 D
33. The lift in an aeroplane is based on
(A) Bernoulli’s theorem (B) Theorem of Continuity
(C) Law of gravitation (D) Pascal’s law
34. Cloudy nights are usually warmer than clear ones because clouds
(A) Do not radiate heat (B) Do not absorb heat
(C) Have low thermal conductivity (D) Have high thermal conductivity
36. The unit of Plank’s constant is
(A) Nm (B) eV
(C) Js-1 (D) Js
37. The emission of b -rays in radioactive decay results in the change of
(A) Charge but not mass (B) Mass but not charge
(C) Both mass and charge (D) Either mass or charge
38. The knee voltage in case of Ge junction diode is
(A) 0.7 V (B) 0.5 V
(C) 0.3 V (D) 0.1 V
39. The frequency range of cellular mobile phone from mobile to base station lies between
(A) 420 to 890 MHz (B) 540 to 1600 KHz
(C) 840 to 935 MHz (D) 896 to 901 MHz
43. If momentum is increased by 20%, then kinetic energy increases by
(A) 48% (B) 44%
(C) 40% (D) 36%
44. A bomb of 16 kg explodes into two pieces of masses 10 kg and 6 kg. The velocity of 10 kg mass is 6m/s. The kinetic energy of the other mass is
(A) 60J (B) 100J
(C) 300J (D) 36J
45. What is the percentage change in weight of a body, when taken 32 km below the surface of the earth (radius of earth is 6400 km)?
(A) It will increase by 0.5% (B) It will decrease by 0.5%
(C) It will increase by 0.25% (D) It will decrease by 0.25%
46. The distance covered by a moving body can be found from
(A) Area under distance-time graph
(B) Area under velocity-time graph
(C) Slope of the velocity-time graph
(D) Slope of the distance-time graph
47. A rider on horseback falls forward when the horse suddenly stops. This is due to
(A) The inertia of the horse (B) The inertia of the rider
(C) Large weight of the horse (D) Losing balance