Question

(ii) What happen when the formula of D2 is copied over to D6?
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Answer 1

Explanation:

Alphabet will remain same digit will change according to row number.

Answer 2

Explanation:

For a concave mirror, the image distance becomes equal to the object distance, i.e., the image is formed at the object position when the object is placed on the centre of curvature for the concave mirror.

For a concave mirror, the image distance becomes equal to the object distance, i.e., the image is formed at the object position when the object is placed on the centre of curvature for the concave mirror.So, object distance= radius of curvature.

For a concave mirror, the image distance becomes equal to the object distance, i.e., the image is formed at the object position when the object is placed on the centre of curvature for the concave mirror.So, object distance= radius of curvature.We know that, for a spherical mirror, radius of curvature=2× focal length.

For a concave mirror, the image distance becomes equal to the object distance, i.e., the image is formed at the object position when the object is placed on the centre of curvature for the concave mirror.So, object distance= radius of curvature.We know that, for a spherical mirror, radius of curvature=2× focal length.Given, focal length=25cm

For a concave mirror, the image distance becomes equal to the object distance, i.e., the image is formed at the object position when the object is placed on the centre of curvature for the concave mirror.So, object distance= radius of curvature.We know that, for a spherical mirror, radius of curvature=2× focal length.Given, focal length=25cmTherefore, object distance= radius of curvature=2×25cm=50cm