A parrot comes and sits on a bare high-power line. It will
A. experience a mild shock
B. experiences a strong shock
C. get killed instantaneously
D. not be affected at all
A. experience a mild shock
B. experiences a strong shock
C. get killed instantaneously
D. not be affected at all
D. not be affected at all
When a person standing barefoot on the ground comes in contact with a high-power line, he is likely to
A. experience a total shock
B. experience a mild shock
C. experience a moderate shock
D. remain unaffected
A charge q is placed at one corner of the cube. The electric flux passing through any one of its face is
A point charge +Q is placed in the vicinity of a conducting surface. Draw the electric field lines between the surface and the charge.
In the process of charging, the mass of the negatively charged body-
(A) Increases
(B) Decreases
(C) Remains Constant
(D) None of the above
Two charges q and –3q are placed on x-axis separated by distance d. Where a third charge 2q should be placed such that it will not experience any force ?
Find the expression for electric field intensity in an axial position due to electric dipole.
Derive an expression for electric field of a dipole at a point on the equatorial plane of the dipole. How does the field vary at large distances?
Electric potential at a distance r from the point charge is proportional to
1. \(r^2\)
2. r-1
3. r0
4. r+1
The speed of light in air is 3 × \(10^8\) m/s. If the refractive index of glass is 1.5, find the time taken by light to travel a distance 50 cm in glass.
(a) 2.5 × \(10^{-9}\) sec.
(b) 0.5 × \(10^{-9}\) sec.
(c) 0.16 × \(10^{-9}\) sec.
(d) 3 × \(10^{-9}\) sec.
In Young’s double slit experiment, using sodium light (λ = 5898) , 92 fringes are seen. If given colour (λ= 5461) is used, how many fringes will be seen?
I. 67
II. 95
III. 99
IV. 84
When 2 × \(10^{11}\) electrons are removed from a neutral metal sphere, the charge on the sphere becomes:
(A) -16 nC
(B) 16 nC
(C) -32 nC
(D) 32nC
Electric charge between two bodies can be produced by
(A )Sticking
(B) Rubbing
(C) Oiling
(D) Passing AC current
In the diffraction pattern due to single slit, at the position of 2nd maximum the path difference between the wavelets from the opposite edges of the slit is
I. 5λ/2
II. 3λ/2
III. 2λ
IV. λ
Two interfering beams have intensities in the ratio of 9:4. Then the ratio of maximum to minimum intensity in the interference pattern is
(A) 25:1
(B) 13:5
(C) 5:1
(D) 3:2