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Organisation : Indian Association of Physics Teachers
Exam Name : National Standard Examination In Physics NSEP
Document Type : Question Papers
Website :  iapt.org.in

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Phy 152: https://www.pdfquestion.in/uploads/7279-Phyp152.pdf
Solutions : https://www.pdfquestion.in/uploads/7279-SolutionsPhysics.pdf
Answer Keys: https://www.pdfquestion.in/uploads/7279-AnswerKeysphysics.pdf

National Standard Examination In Physics :

Question-1:
A particle moves in a plane with a constant speed along a path y = 2×2 + 3x – 4. When the particle is at (0, – 4) the direction along which it is moving is inclined to the X axis at an angle

Related : Indian Association of Physics Teachers IAPT National Standard Examination In Junior Science 2015 : www.pdfquestion.in/8238.html

(a) 630
(b) 720
(c) 270
(d) 00

Question-2:
A large cylindrical vessel contains water to a height of 10 m. It is found that the thrust acting on the curved surface is equal to that at the bottom. If atmospheric pressure can support a water column of 10 m, the radius of the vessel is
(a) 10 m
(b) 15m
(c) 5 m
(d) 25 m

Question-3:
Two identical thin metal strips, one of aluminum and the other of iron are riveted together to form a bimetallic strip. The temperature is raised by 50o C. If the central planes of the two strips are separated by 2 mm and the coefficients of thermal expansion for aluminum and iron are respectively 30 × 10-6 / 0C and 10 × 10-6 / 0C, the average radius of curvature of the bimetallic strip is about
(a) 50 cm
(b) 100 cm
(c) 150 cm
(d) 200 cm

Question-4:
Standing waves are generated on a string loaded with a cylindrical body. If the cylinder is immersed in water, the length of the loops changes by a factor of 2.2. The specific gravity of the material of the cylinder is
(a) 1.11
(b) 2.15
(c) 2.50
(d) 1.26

Question-5:
A curved road with radius of curvature 200 m is banked with an angle of banking equal to tan-1 (0.2). Now, if the traffic is at double the speed for which the road is designed, the minimum value of the frictional coefficient needed is (g = 10 m/s2)
(a) 0.52
(b) 0.35
(c) 0.94
(d) 0.80

Question-6:
A plastic pipe filled with iron wires forms a soft iron core. Two identical coils that can just slide over the pipe are placed on this soft iron core. Initially the pipe is kept horizontal and a current is passed through the coils connected in series. The fields are in opposition and the coils remain stationary with a separation of 5 cm. The system is now made vertical and the separation between the coils reduces to 4 cm. Then the coefficient of friction between the coils and the pipe is
(a) 0.41
(b) 0.02
(c) 0.5
(d) 0.3

Question-7:
A uniform meter scale is supported from its 20 cm mark. A body suspended from 10 cm mark keeps the scale horizontal. However, the scale gets unbalanced if the body is completely immersed in water. To regain the balance the body is shifted to the 8 cm mark. Therefore, the specific gravity of the material of the body is
(a) 5
(b) 6
(c) 7
(d) 4

Question-8:
Let vavg, vp and vrms be respectively the average, the most probable and the root mean square speeds of gas molecules according to Maxwell’s distribution. Then,
(a) vavg<vp<vrms
(b) vp<vrms<vavg
(c) vrms<vp<vavg
(d) vp<vavg<vrms

Question-9:
A coal-based thermal power plant producing electricity operates between the temperatures 27oC and 227oC. The plant works at 80% of its maximum theoretical efficiency. Complete burning of 1 kg of coal yields 36000 kJ of heat. A house needs 10 units of electricity each day. Coal used for supplying the amount of energy for the house in one year is
(a) 1141 kg
(b) 580 kg
(c) 605 kg
(d) 765 kg

Question-10:
A copper-constantan thermocouple has thermoelectric power 40 µV/oC. One junction is at 0oC while the other is at 50oC. The thermocouple is connected to a 30-0-30 galvanometer to produce a full scale deflection. If a 100 ohm resistance is connected in series with the galvanometer, the galvanometer gives a deflection of 10 divisions. The figure of merit of the galvanometer is
(a) 1.3 µA/div
(b) 2.0 µA/div
(c) 2.3 µA/div
(d) 4.0 µA/div

Question-11:
A fresh dry cell of 1.5 volt and two resistors of 10 kF each are connected in series. An analog voltmeter measures a voltage of 0.5 volt across each of the resistors. A 1000 µF capacitor is fully charged using the same source. the same voltmeter is now used to measure the voltage across it. The initial value of the current and the time in which the voltmeter reading falls to 0.5 volt are respectively
(a) 60 µA, 11 s
(b) 120 µA, 15 s
(c) 150 µA, 15 s
(d) 150 µA, 11 s

Question-12:
A charge of + 2 µC is situated off-centre of a hollow spherical metallic shell. Then,
(a) – 2µC charge gets uniformly distributed on the inner surface of the shell.
(b) + 2µC charge gets non-uniformly distributed on the outer surface of the shell.
(c) – 2µC charge gets non-uniformly distributed on the inner surface of the shell.
(d) no charge appears on the outer surface of the shell.