Advertisements
Advertisements
प्रश्न
We can see a non-luminous object when the light
विकल्प
emitted by the object falls on the eye
is reflected from the object towards our eye
completely passes through the object
gets completely absorbed by the object
Advertisements
उत्तर
is reflected from the object towards our eye
Explanation:
We can see a non-luminous object (object that does not produce its own light), when light reflected by the object enters our eyes.
APPEARS IN
संबंधित प्रश्न
Write true or false of the following statement.
The objects are seen around us due to irregular reflection of light.
Fill in the blank
Angle of incidence = ___________
Select the correct alternative
The angle of incidence on a plane mirror is 30°.The angle of reflection will be:
Explain the following terms:
Incident ray, Reflected ray, Angle of incidence, Angle of reflection, Normal.
In the following diagrams, measure and write the angle of incidence and draw the reflected ray in a given case.
Draw a ray diagram showing the formation of image of a point object by a plane mirror.
Define the following term
Normal
A small hole P is made in a piece of cardboard. The hole is illuminated by a torch as shown in the following figure. The pencil of light coming out of the hole falls on a mirror.
At which point should the eye be placed, so that the hole can be seen?
Assertion (A): A ray incident along normal to the mirror retraces its path.
Reason (R): In reflection, the angle of incidence is always equal to the angle of reflection.
A ray of light fall on a plane surface at an angle of incidence of 9° and reflection occurs. Calculate the angle of reflection in degree.
