Multiple choice

Consider the following statements:

  1. Holography is the method of producing 3D images by means of laser light.
  2. In day light, oil or soap film appears coloured due to interference.

Which of the given statements is/are correct?

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. Neither 1 nor 2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement 1 is correct. Holography is a technique, which enables three-dimensional images to be made. It involves the use of a laser, interference, diffraction, and light intensity. Statement 2 is also correct. Oil or soap film appears coloured due to interference. Thin-film interference is the phenomenon that occurs when incident light waves reflected by the upper and lower boundaries of a thin film and interfere with one another to form a new wave.

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