Advertisements
Advertisements
प्रश्न
An image which can be obtained on a screen is called a ______ image.
Advertisements
उत्तर
An image which can be obtained on a screen is called a real image.
Explanation:
A real image is formed by converging light rays and can be projected onto a screen, making it visible at the point where the rays meet.
APPEARS IN
संबंधित प्रश्न
One half of a convex lens of focal length 10 cm is covered with a black paper. Can such a lens produce an image of a complete object placed at a distance of 30 cm from the lens? Draw a ray diagram to justify your answer. A 4 cm tall object is placed perpendicular to its principal axis of a convex lens of focal length 20 cm. The distance of the object from the lens is 15 cm. Find the nature, position and the size of the image.
State the kind of mirror used
(a) by a dentist, and
(b) as a street light reflector.
Mention the types of mirrors used as (i) rear view mirrors, (ii) shaving mirrors. List two reasons to justify your answers in each case.
What is meant by magnification? Write its expression. What is its sign for the (a) real (b) virtual, image?
State two uses of a concave mirror.
Is real image always inverted?
Define the term Pole.
Complete the following diagrams shown in the following figures by drawing the reflected rays.
If the focal length of a spherical mirror is 10 cm, what is the value of its radius of curvature?
