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Prove that the vectors vec A = 8 hat i +...

Prove that the vectors `vec A = 8 hat i + 9 hat j + 7hat k` and `vec B = 24 hat i + 27 hat j + 21 hat k` are parallel to each other.

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NAVNEET PUBLICATION - MAHARASHTRA BOARD-SOLVED PROBLEMS-II -Interference and Diffraction
  1. Prove that the vectors vec A = 8 hat i + 9 hat j + 7hat k and vec B = ...

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  2. If the amplitude ratio of two interfering choherent waves producing an...

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  3. Two slits in Young's experiment have widths in the ratio 8100 : 7255. ...

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  4. At a point in an interference pattern, the two interfering coherent w...

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  5. Find the ratio of intensities at the two points X and Y on a screen in...

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  6. Two monochromatic light waves of equal intensities produce an interfer...

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  7. At a point on the two-slit interference pattern obtained using a sourc...

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  8. In Young's double-slit experiment using light of wavelength 5000 Å, wh...

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  9. In Young's experiment, the wavelength of monochromatic light used in 6...

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  10. In Young's double-slit experiment , the slits are 0.5 mm apart and int...

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  11. In Young's double-slit experiment, the fringe pattern shifts by a dist...

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  12. In a biprism experiment, the fringe width is 1.4mm with light of wavel...

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  13. In a biprism experiment, the fringe width is 1.5mm when the eyepiece i...

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  14. In a briprism experiment, if the separation between the magnified imag...

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  15. As observed from the top of a 100 m high light house from the sea leve...

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  16. In a biprism experiment, the distance between the first and eleventh b...

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  17. In a biprism experiment, when a convex lens is placed between the bipr...

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  18. In a biprism experiment, the distance between two coherent sources is ...

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  19. The semi vertical angle of the cone of the rays of light incident on t...

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  20. An oil-immersion objectives of a microscope uses oil of refractive ind...

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