Question

pls help
options given
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Answer 1

Answer:

B is the correct answer.......tq mark me as brainlist.....

Answer 2

Required Answer:

${\underline {\boxed {\Large {\bf \gray {Option \: 3!! } }}}}$

→ Statement 1 is true but statement 2 is false. ☑

Explanation:

Statement 1 : When object moves towards a concave mirror, the size of the image of the object increases.

→ Yes, this statement is true because concave mirrors form large images of closely placed objects .

Statement 2 : That is why convex mirror is used by dentists to obtain larger virtual image.

→ This statement is false because if you'll note this statement then you'll find a difference that here is "convex mirror". Convex mirrors aren't used by the dentists. Dentists use concave mirrors.

Thus, 1st one is true and 2nd one is false. So, option 3 is correct. ☑

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Know More!

• Spherical mirror : Mirrors that have curved reflecting surfaces are called spherical mirrors.

Spherical mirrors are of two type:

• Concave mirror

→ They have reflecting surface curved inwards.

→ When the object is moved closer to the mirror the size of the image increases.

→ The image formed by the concave mirror is real and inverted and obtained on a screen but after a certain point when the image becomes largest it cannot be obtained on a screen and image obtained is virtual ,erect and magnified.

• Convex mirror

→ They have reflecting surface curved outwards.

→ Image formed by it is virtual and upright.

→ Image formed by it is diminished.

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