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प्रश्न
An object AB is placed in front of a convex lens as shown in fig. 4. Complete the ray diagram and obtain the image formed and state the nature of the image.
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उत्तर
Nature of image: Real, inverted and magnified.
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संबंधित प्रश्न
Describe how you could demonstrate that white light is composed of a number of colours.
The splitting up of white light into seven colours on passing through a glass prism is called:
(a) refraction
(b) deflection
(c) dispersion
(d) scattering
Which of the following coloured light has the least speed in glass prism?
(a) violet
(b) yellow
(c) red
(d) green
Out of the following, the colour of light having the maximum wavelength is:
(a) violet
(b) indigo
(c) green
(d) orange
Out of air and glass, which is optically rarer? Give reason.
Draw a labelled diagram: Dispersion of light through a prism.
In the diagram, a narrow beam of white light is incident on a right-angled isosceles prism. The critical angle of the material of prism for the yellow colour of white light is 45°. Complete the diagram to show the path of blue, yellow, and red colours of white light till they emerge out of the prism.
What is Newton’s disc?
State True or False:
"Wavelength of red light is close to 700 nm.”
