Q.5. What could be the possible reasons for errors in measurements?
Q: What do we need to ignore in order to state that the total mechanical energy in our system never cha...
A: Law of conservation of mechanical energy- It states that energy can not be created nor be destroyed...
Q: X’ is the phenomenon of making a region free from any electric field. Identify X. a) Faraday’s cage ...
A: B
Q: a) What is the physical interpretation of the wave function in the Schrodinger Equation? b) The p...
A: The wave function in the Schrodinger Equation has no physical significant. But square of the wave fu...
Q: Force on particle, of mass ‘m’, undergoing SHM is given by: F = -kx. What is the relation between x ...
A: C
Q: V/m is the unit of ______ a) Electric field intensity b) Electric flux c) Electric potential d) Char...
A: A
Q: Select the correct order of steps in which a working substance(gas) goes through in a refrigerator. ...
A: A
Q: What will be permittivity of a medium which has dielectric constant 5.4? a) 4.78*10-11 C2N-1m-2 b) 8...
A: A
Q: particle is undergoing a SHM of amplitude 10cm. What should be the minimum value of acceleration at ...
A: D
Q: parallel plate capacitor has a plate area of 100 cm2 and is separated by a distance of 20 mm. Find i...
A: C
Q: Electric field inside a hollow conducting sphere ______ a) Increases with distance from the center o...
A: C
Q: both the source of sound and observer are moving, the apparent frequency will be different from the ...
A: B
Q: According to the first law of thermodynamics, a book lying on a table can fly upwards on its own by ...
A: According to the first law of thermodynamics, ∆U=Q-W where ∆U is the internal energy change in the ...
Q: Four charges are kept at the corner points of a square. The net force on a charge kept at the center...
A: D
Q: equivalent overall resistance is smaller than the smallest parallel resistor. a) True b) False
A: A
Q: A solid non conducting sphere of radius 1m carries a total charge of 10 C which is uniformly distrib...
A: Given: The total charge on the sphere q = 10 C. The radius of the sphere r = 1 m.
Q: What is a quasi-static process? a) Irreversible b) Reversible c) In equilibrium at every state d) No...
A: C
Q: Two equal and opposite charges Q1 = 2 C and Q2 = -2C are placed at a distance of 6m from each other....
A: B
Q: The graph of a quadratic function is given. Write the function’s equation, selecting from the follow...
A: The correct answer is : g(x) = (x+1) 2 + 1 is the equation of the mentioned graph in the question.
Q: particle starts from the extreme position, at t = 0, in a SHM. If the time period of motion is 2s &a...
A: A
Q: Consider the damped SHM of a spring mass system. If the time taken for the amplitude to become half ...
A: B
Q: Two charges q1, q2 exert some amount of force on each other. What will happen to the force on q1 if ...
A: D
Q: Find the true statement. a) A Van de Graff generator produces large voltage and less current b) A Va...
A: A
Q: Five charges are arranged as shown in the figure; four identical charges form a square of side d whi...
A: For charge Q to be in equilibrium net forces on Q should be 0. FnetQ=0FnetQx=0FnetQy=0 Net force in ...
Q: Two point charges 1C and -1C are placed 5mm away from each other forming a dipole. What will be the ...
A: B
Q: The equation of a wave is given by y = 3sin(4x-2t). What is the time period and wavelength of the wa...
A: C
Q: An engine works between 2 reservoirs of temperature 500K and 300K. A company claims that this engine...
A: A
Q: Which among the following has weak temperature dependence values with resistivity? a) Silver b) Copp...
A: C
Q: What is the minimum distance between a node & an antinode in a standing wave? a) λ b) λ/2 c) 2λ ...
A: D
Q: The angle of the oblique shock wave= Mach number downstream the shock wave = Stagnation pressure...
A: Given -Data- Speed(v) =1038m/s Temperature(T)=298K Pressure(P)=100kPa angle =10degree To-Find:- a) T...
Q: Find the electric field intensity at 10cm away from a point charge of 100 esu. a) 1 dyne/esu b) 10 d...
A: A
Q: How does the electric field change with the effect of the dielectric when the battery remains connec...
A: c
Q: Electric energy is dependent on time. a) True b) False
A: A
Q: Which among the following molecule is not a dipole? a) NH3 b) H2O c) HCl d) CH4
A: D
Q: Find the center of gravity of the region bounded by the x-axis, the curve y = sec x, and the lines x...
A: Given: Let the position of the center of the mass of the given figure be at (x¯,y¯) Due to symmetry...
Q: Average kinetic energy of a gas depends on which of the following factors? a) Nature of gas b) Tempe...
A:
Q: Let T1 be the time period of a single spring mass system on a horizontal surface. Let T2 be the time...
A: C
Q: Predict the effect of length of conductor on drift velocity of electrons. a) Drift velocity varies l...
A: D
Q: The amount of force exerted on a unit positive charge in an electric field is known as _____ a) Elec...
A: This is a question related to the electric field. Electric field intensity: The amount of force exer...
Q: What is the ratio of the polarization to εo times the electric field called? a) Polarisation density...
A: B
Q: Which group among the following is insulator? a) Silver, copper, gold b) Paper, glass, cotton c) The...
A: A
Q: Number of electrons in 1 Coulomb charge is _________ a) 6.25*1021 b) 6.25*1020 c) 6.25*1025 d) 6.25*...
A: A
Q: Flux coming out from a balloon of radius 10 cm is 1.0*103 N.m2.C-1-1. If the radius of the balloon i...
A: C
Q: What should be the shape of a conductor that can hold a charge for long? a) Cubical b) Conical c) Sh...
A: D
Q: The electric potential difference between two points is a path function. The statement is __________...
A: The electric potintial difference between two point is not a path function, but point function. we k...
Q: An electric dipole is placed inside a cube. What will be the nature of electric flux from the cube s...
A: C
Q: Two springs in horizontal spring mass systems have spring constants in the ratio 2:3. By what ratio ...
A: B
Q: Four charges are kept at the corner points of a square. The net force on a charge kept at the center...
A: D
Q: Coulomb = ________ Electro Static Unit. a) 3*109 b) 3*108 c) 1.602*10-19 d) 2*109
A: C
Q: Damping force on a spring mass system is proportional to which of the following quantities? a) Veloc...
A: A
Q: What is the dimensional formula of capacitance of a capacitor? a) M1L2T-4I-2 b) M-1L-2T4I2 c) M-1L-2...
A: B
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