A. Their amplitudes are equal B. Their frequencies are equal C. Their wavelengths are equal D. Their phase difference is constant
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A. Polarised B. Longitudinal C. Transverse D. None of these
A. Real and erect B. Real and inverted C. Virtual and erect D. Virtual and inverted
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A. Momentum and kinetic energy B. Kinetic energy alone C. Momentum alone D. Neither momentum nor kinetic energy
A. A single force B. Two like parallel force acting at different places C. Two unlike parallel force acting at a point D. None of the above
(A) Gamma rays (B) X-rays (C) Microwaves (D) Radio waves
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A. Conductors B. Insulators C. Both A and B D. None of these
A. Intensity B. Illuminance C. Luminosity D. None of these
A. N/C B. J/C C. V/M D. j/Cm
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A. Equilibrium B. Not in equilibrium C. Unstable equilibrium D. None of these