An optically active compound
|
(a) Rotates the plane polarised light |
|
(b) Changing the direction of polarised light |
|
(c) Do not allow plane polarised light to pass through |
|
(d) None of the above |
(a) Rotates the plane polarised light
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An electric dipole is placed along the x - axis at the origin O. A point P is at a distance of 20 cm from this origin such that OP makes an angle 
with the x-axis. If the electric field at P makes an angle θ with the x-axis, the value of θ would be
|
(a) |
(b) |
(c) |
(d) |
Two batteries of e.m.f. 4V and 8 V with internal resistances 1 W and 2 W are connected in a circuit with a resistance of 9 W as shown in figure. The current and potential difference between the points P and Q are
|
(a) |
(b) |
(c) |
(d) |
Wave nature of light follows because
|
(a) Light rays travel in a straight line |
|
(b) Light exhibits the phenomena of reflection and refraction |
|
(c) Light exhibits the phenomenon of interference |
|
(d) Light causes the phenomenon of photoelectric effect |
A coil of area 
has 500 turns. Magnetic field of 
is perpendicular to the coil. The field is reduced to zero in 0.1 second. The induced e.m.f. in the coil is
|
(a) 1 V |
(b) 5 V |
(c) 50 V |
(d) Zero |
