What are the three levels of Governance in India?
Answer: The three levels of Governance in India are Central Government, State Government and Local Government. The Central Government works... View Article
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The Oath of the High Court Judge is administered by?
Answer: The oath of the Judge in a High Court is administered by the Governor of that respective state. After... View Article
Which Sultan dug the canal from Sutlej river to Ghaghra?
Answer: Firuz Shah was the Sultan who dug the canal from Sutlej river to Ghaghra. Firuz Shah also founded the... View Article
Which foreign country is closest to the Andaman Islands? a)Indonesia b)Bangladesh c)Sri Lanka d)Myanmar
Answer: The correct answer is option (d) – Myanmar Andaman Islands are separated from Myanmar and Thailand by the Andaman... View Article
Rice is a subsistence crop in Orissa. In which of the following states, is rice a commercial crop? a)West Bengal and Bihar b)Jammu and Kashmir c)Punjab and Haryana d)Tamil Nadu and Kerala
Answer: The correct answer is option (C) – Punjab and Haryana. The top rice producing states in India are West... View Article
What does the symbol Crown of Oak Leaves during the days of European Nationalism signify?a)Strengthb)Heroismc)Readiness to Fightd)Willingness to make peace
Answer: The correct answer is option (b) – Heroism. The crown of oak leaves represents Heroism. The readiness to fight... View Article
According to Ernst Renan what are the attributes of a nation?
Answer: As per Ernst Renan, if the world had only one master and only one law, it would be a... View Article
A point source of heat of power P is placed at the center of a spherical shell of mean radius R. The material of the shell has thermal conductivity k. If the temperature difference between the outer and the inner surface of the shell is not to exceed T, then the thickness of the shell should not be less than
a) 2πR2kT/P b) 4πR2kT/P c) πR2kT/P d) πR2kT/4P Answer: b) 4πR2kT/P Solution: According to given question,Rate of a generation of heat = rate of heat... View Article
An e.m.f. is produced in a coil, which is not connected to an external voltage source. This can be due to
a) The coil being in a time varying magnetic field b) The coil moving in a time varying magnetic field c) The... View Article
Two parallel large thin metal sheets have equal surface charge densities (σ=26.4×10−12 c/m2) of opposite signs. The electric field between these sheets is:
a) 1.5 N/C b) 1.5 x 10-10 N/C c) 3 N/C d) 3 x 10-10 N/C Answer: c) 3 N/C Solution:... View Article
The current gain in the common emitter amplifier is 59. If the emitter current is 6.0mA, find, (i) base current (ii) collector current.
Answer: 0.1mA and 5.9mA Here, β=59,Ie=6.0mA β=Ic/Ib=(Ie−Ib/Ib) =(Ie/Ib)−1 Therefore, 59=(6/Ib)−1or Ib=(6/60)=0.1mA Ic=Ie−Ib=6.0−0.1=5.9mA
A 50 cm long wire has a mass of 20 g supports a mass of 1.6 kg as shown in the figure. Find the fundamental frequency of the portion of the string between the wall and the pulley. Take g = 10 m/s2
a) 2 Hz b) 10 Hz c) 25 Hz d) 15 Hz Answer: c) 25 Hz Solution: f = (1/2l) √T/μ T... View Article
A straight line conductor of length 0.4 m is moved with a speed of 7 m/s perpendiculars to a magnetic field of intensity 0.9 Wb/m2. The induced e.m.f. across the conductor is
(a) 5.04 V (b) 25.2 V (c) 1.26 V (d) 2.52 V Answer: (d) 2.52 V Solution: Length of conductor, l=... View Article
Assertion: Faraday’s laws are consequences of the conservation of energy. Reason: In a purely resistive A.C. circuit, the current lags behind the e.m.f.
(a) Both A and R are true and R is the correct explanation of A (b) Both A and R... View Article
If the work function of a metal is 3.7 eV When a photon of energy 5.2 eV falls on the metal surface then the kinetic energy of ejected photoelectrons will be
Answer: 1.5 eV Solution: K.E = 5.2 – 3.7 = 1.5 eV
In the R−C circuit shown in the figure, the total energy of 3.6×10−3 J is dissipated in the 10 Ω resistor when the switch S is closed. The initial charge on the capacitor is:
a) 60 μC b) 120 μC c) 60√2 μC d) 60/√2 μC Answer: b) 120 μC Solution: When S is closed, the energy stored in the capacitor... View Article
A body released from the top of a tower falls through half the height of the tower in 3 s. It will reach the ground after nearly
b) 3.5 s c) 4.24 s d) 4.71 s d) 6 sec Answer: d) 4.24 s Solution: Let (h) be the... View Article
A cylindrical tub of radius 16 cm contains water to the depth of 30 cm. A spherical iron ball is dropped into the tub, as a result, the level of water rises by 9 cm. The radius of the ball is
a) 10 cm b) 6 cm c) 12 cm d) None of the above Answer: c) 12 cm Solution: Let r... View Article
If earth suddenly stops rotating, then the weight of an object of mass m at equator will [ω is angular speed of earth and R is its radius ] :
a) decreases by mω2R b) increase by mω2R c) decrease by mmωR2 d) increase by mωR2 Answer: b) increase by mω2R Solution: ge = g... View Article
An aeroplane of mass 3×104 kg and a total wing area of 120 m2 is in a level flight at the same height. The difference in pressure between the upper and lower surface of its wings in Kilo Pascal is( g = 10 ms−2)
a) 2.5 b) 5.0 c) 10 d) 12.5 Answer: a) 2.5 Solution: Pressure, Δp=F/A =mg/A =(3×104×10)/120 =2.5 x 103 = 2.5... View Article
