Q. The electric field lines from an isolated positively charged conducting sphere are -
1) tangential to the conducting surface
2) at right angles to the conducting surface and toward the center of the sphere
3) at any angle to the conducting surface
4) at right angles to the conducting surface and outwards from the center of the sphere
Q. An electric wire of resistance 50 Ω (ohms) is cut into five equal wires. These wires are then connected in parallel. What is the equivalent resistance of this combination?
1) 2 Ω
2) 10 Ω
3) 0.5 Ω
4) 5 Ω
Q. Which of the following statements correctly explains/explain the existence of a positive force between two electric charges?
1. Both the charges are positive.
2. Both the charges are negative.
3. Both the charges are oppositely charged.
Select the correct answer using the code given below -
1) Only l
2) Only 2
3) Only 1 and 2
4) All 1, 2 and 3
Q. Evaporation from the surface of a given liquid takes place more rapidly when -
1) the temperature is high and the surface area of the liquid is large
2) the temperature is low and the surface area of the liquid is large
3) the temperature is low and the surface area of the liquid is small
4) the temperature is high and the surface area of the liquid is small
Q. The specific latent heat of vaporization of a substance is the quantity of heat needed to change unit mass from -
1) liquid to vapour with a change in temperature
2) liquid to vapour without a change in temperature
3) vapour to liquid without a change in temperature
4) vapour to liquid with a change of temperature
Q. What is the mass of a material, whose specific heat capacity is 400 J/(kg °C) for a rise in temperature from 15°C to 25°C, when heat received is 20 kJ?
1) 0.1 kg
2) 1 kg
3) 10 kg
4) 5kg
Q. Which among the following is not related to the ranking of World Universities?
1) Times higher ranking
2) QS ranking
3) Madrid ranking
4) Shanghai ranking
Q. Which of the following is/are the feature/s of the Reflective level of teaching?
(a) Students learn by understanding the facts and information.
(b) Teaching is nothing but learning the subject by rote.
(c) Development of problem-solving ability.
(d) The student's original thinking and creative abilities.
(e) The pupils are kept in strict disciplines and cramming is insisted.
Choose the correct answer from the options given below -
1) Only (b) and (c)
2) Only (d) and (e)
3) Only (a) and (b)
4) Only (c) and (d)
Q. What is the full form of the acronym CAD and CAM?
1) Control Aided Data and Computer Aided Man
2) Computer-Aided Design and Computer Aided Manufacturing
3) Computer-Aided Design and Computer Aided Maintenance
4) Computer-Aided Design and Computer-Aided Map
Q. The functional components of a digital computer are:
(a) Input Device
(b)Printer
(c) Central Processing Unit
(d) Memory
(e) Output Device
Choose the correct answer from the options given below -
1) Only (a), (b), (c), (d)
2) Only (a), (d), (e)
3) Only (a), (c), (d), (e)
4) Only (c), (d), (e)
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