A. Visible light rays B. Ultraviolet rays C. Infrared rays D. Sound waves
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A. Spherical B. Elliptical C. Cylindrical D. Parabolic
A. It will decrease B. It will increase C. It will remain same D. None
A. erg s B. dyn s C. dyn cm D. erg cm
A. Decreases B. Increases C. First increases then decreases D. Neither increases nor decreases
A. Refractive index B. Wavelength C. Angle of prism D. None of these
A. Time period B. Frequency C. Angular acceleration D. Acceleration
A. Positive B. Negative C. Zero D. None of these
A. Converging B. Diverging C. Parallel D. None