B. 50?

C. 62?

D. 100?

A. circularly polarized

B. elliptically polarized

C. un-polarized

A. 1.44kw/m2

C. 1.4kw/m2

D. none

A. elastic force

B. frictional force

D. gravitational force

B. neither change in K.E and nor change in its P.E

C. change in its P.E always

D. change in its K.E always

A. none of these

C. [ML2T3]

D. [ML2T-2]

A. 180

B. 60

D. 30

A. F=1/Bsin?

B. F=1/B

C. F=1/Bcos?

A. 1600 ms-1

B. 2263ms-1

D. 71.6 ms-1

A. Each increase

B. One increases whereas that in the other decreases

D. Each remains the same

B. Valence band

C. Conduction band

D. Forbidden band

A. ammeter

B. galvanometer

C. voltmeter

A. Interference

C. Reflection

D. Polarization

A. 5 volt

B. 0.4 volt

C. 4 volt

A. Proton

C. a-particle

D. neutron

A. residual lost of the earth

C. decay of radioactive element in the earth

D. compression of material in the earth

B. a circle

C. an ellipse

D. a spiral

B. Sound waves

C. Radio waves

D. Modulated waves

A. a straight line along its initial direction

B. a straight line parallel to the field

C. a parabola in a plane perpendicular to the field

A. 2Y?

B. Y?

D. Y?/2

B. Gamma rays

C. Photon

D. Antiproton

A. Cleavage

B. Isotropy

D. Homogeneity

A. Semi-conductor becomes conductors

B. Metals become super conductor

D. Paramagnetic becomes diamagnetic

A. Perpendicular to electric field

C. Perpendicular to magnetic field

D. Parallel to electric and magnetic field

B. changes its magnitude harmonically and reverses its direction of flow after regularly recurring intervals

C. fluctuates off and on

D. varies in magnitude alone

A. First

B. Second

C. Third

A. Moon

B. Neptune

C. Earth

A. Fast counting

B. Extremely fast counting

D. All situations

A. Transport impulses

B. Transport signals

C. Transport vibrations

B. none of the above

C. shunt value increases

D. shunt value remains the same

A. Vector in the direction at angle ? with an x-axis

B. Vector

D. Position Vector

A. its mass

B. the angle at which it is thrown

D. gravitational field of earth

A. force into small interval

C. both force and displacement into small intervals

D. force into small and displacement into large intervals

A. Iron rods

B. Graphite rods

C. Platinum rods

A. 2

C. 1

D. 3

A. Dislocation

B. Cleavage

D. Polymerization

A. Molecules

B. Ions

D. Isotopes

B. Symmetry

C. Homogeneity

D. Isotropy

B. electric field

C. electromagnetic field

D. gravitational field

A. ?-rays

B. ?-rays

D. ?-rays

A. Sinusoidal current

C. Average current

D. Net current

A. V = VR+VL+VC

B. V2 = VR2+VL2+VC2

D. V2 = VL2+(VR-VC)2

A. Barium platinocyanide

B. Calcium tungstate

D. ZnS

A. All have the equal penetrating powe

B. B-rays

D. X-rays

A. gravitational

B. electric

D. magnetic

A. Cross product of position vector and force

B. Turning effect of force

D. Product of force and moment arm

A. Is in phase with voltage

B. Lags behind voltage by ?/2

D. Opposite in phase of voltage by ?

A. Electrons only

B. All of the above

C. Holes only

B. 110V

C. 220/ 2V

D. 220V

A. Electric field

B. Artificial gravitational field

D. Magnetic field