In monochromatic red light a blue book will probably appear to be_________________?

Related Mcqs:

1. In a photoelectric effect monochromatic light is incident on a metal surface. If the incident light of twice the intensity but of same wavelength the kinetic energy of the emitted electron_______________?

   A. Becomes double B. Remains same C. Becomes half D. First increases then decrease because of the curvilinear graph...

2. Which one of the following is nearly monochromatic light ?

   A. light form fluorescent tube B. light form neon lamp C. light form sodium lamp D. light form simple lamp...

3. A point where the incident parallel rays of light converge or appear to diverge after passing through a lens is called______________?

   A. center of curvature B. focus C. optical center D. aperture...

4. Gives the definition of metre in terms of wavelength of red cadmium light ___________________?

   A. Newton B. Einstein C. Michelson D. Galileo...

5. The blue colour of the sky is due to___________________?

   A. diffraction B. reflection C. polarization D. scattering...

6. A point source of light placed in a homogeneous medium gives rise to ___________________?

   A. a cylindrical wave front B. an elliptical wave front C. a spherical wave front D. a plane wave front...

7. When one mirror of a Michelson Interferometer is moved a distance of 0.5 mm we observe 2000 fringes. What will be wavelength of light used ?

   A. 5000 nm B. 5000A C. 500m D. 2000um...

8. Two sources of light are coherent if they emit rays of_______________?

   A. same wavelength B. same amplitude of vibration C. same wave length with constant phase difference D. same amplitude and wavelength...

9. The velocity of light was determined accurately by_______________?

   A. Newton B. Michelson C. Huygen D. Young...

10. Light on passing through a Polaroid is ___________________?

    A. plane polarized B. un-polarized C. circularly polarized D. elliptically polarized...