Question

------------⚠️Spammers Stay Away⚠️------------

Differentiate between:
• Converging and diverging Lens
• Real and Virtual image​

Answer 1

Answer

Difference Between Convergent and Divergent Lens

Convergent Lens

• A convergent lens is also known as the convex lens
• It is used in converging the ray of light hitting the mirror
• This lens is used in the cases where a person is suffering from myopia also called as short sightedness
• They have positive Focal Length
• They form diminished images
• It is thicker at the middle and thinner at the edge

Divergent Lens

• A divergent Lens is also known as a concave lens
• It is used in diverging the light rays that hit the mirror
• The lens is used on correcting the eye sight of people suffering from Hypermetropia, also called as long sightedness
• They have a negative focal length
• It is thinner at the middle and thicker at the edges

Difference between Real and virtual image

Real Image

• Real images are those where the image formed is upside down or inverted
• They are formed when two light rays really meet again together
• Real images are formed by the Convex lens and concave mirror
• These images are really formed on a screen

Virtual Image

• A virtual image is a kind of image that os erect
• They are not formed due to the real intersection of light rays
• Virtual images are formed by Concave lens and convex mirror
• These images are not formed on the screen

Answer 2

Answer:

$\huge\bf {\underline\red{required \: answer}}$

Differentiate between:

• • Converging and diverging Lens

• • Real and Virtual image

Concave lens or converging lens:

• 1) It has both surfaces curving inwards.

• 2) It is thicker at edges and thinner at middle.

• 3) It diverges the light coming towards it.

• 4) Its focal length is negative.

• 5) It always produces a virtual image.

Convex lens or diverging lens:

• 1) It has both surfaces curving outwards.

• 2) It is thicker at middle and thinner at the edges.

• 3) It converges the light coming towards it.

• 4) Its focal length is positive.

• 5) It always produces a real image and forms avirtual image only when the object is between the focus and optical centre.

Real image:

• Convex lenses form a real image

• Real images are inverted

• Real images are formed on the screen

• Real images are formed by a concave mirror

• Real images are formed due to the actual intersection of light rays

Virtual images:

• Virtual images are erect

• Plane, convex mirror and concave lens forms a virtual image

• Concave lenses form a virtual image

• Virtual images appear to be on the lens or the mirror itself

• Virtual images are formed due to the imaginary intersection of light rays