Advertisements
Advertisements
प्रश्न
Draw a ray diagram to show the formation of image in the above situation
उत्तर
APPEARS IN
संबंधित प्रश्न
State any two uses of convex lenses.
Define principal axis, principal focus and focal length of a convex lens.
Find the nature, position and magnification of the images formed by a convex lens of focal length 0.20 m if the object is placed at a distance of:
0.15 m
In a certain murder investigation, it was important to discover whether the victim was long-sighted or short-sighted. How could a detective decide by examining his spectacles?
Show by a diagram the refraction of two light rays incident parallel to the principal axis on a convex lens by treating it as a combination of a glass slab and two triangular glass prisms.
Observe the following figure and answer the questions.
a) Which optical instrument shows arrangement of lenses as shown in the figure?
b) Write in brief the working of this optical instrument.
c) How can we get different magnifications in this optical instrument?
d) Draw the figure again and labelled it properly
State the position of object, position of image, nature of image when: Convex lens is used in cine projector.
A concave mirror and convex lens are held in water. What changes, if any, do you expect in their focal length?
Write scientific reason.
Adults need bifocal lens spectacle.
A beam of light is incident through the holes on side A and emerges out of the holes on the other face of the box as show in the figure. Which of the following could be inside the box?
