SELECT * FROM question_mgmt as q WHERE id=3762 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=16 AND chapterId=261 and ex_no='5' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 10th science Light - Reflection and Refraction an object 5 cm in length is held 25 cm away from a

Question:

An object 5 cm in length is held 25 cm away from a converging lens of focal length 10 cm. Draw the ray diagram and find the position, size and the nature of the image formed.

Answer:

Given

Converging lens is convex lens

Object distance, u = −25 cm

Object height, ho = 5 cm

Focal length of convex lens, f = +10 cm

According to the lens formula,

The value of v  positive this shows that the image formed at the other side of the lens.

The negative sign shows that the image is real and formed behind the lens.

The negative value of image height shows that the image formed is inverted. Ray diagram showing The position, size, and nature of image are:

 


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