An object is kept 5 cm in front of a concave mirror of focal length 15 cm. What will be the nature of the image?

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Q: 68 (NDA-II/2009)
An object is kept 5 cm in front of a concave mirror of focal length 15 cm. What will be the nature of the image?

question_subject: 

Science

question_exam: 

NDA-II

stats: 

0,4,9,4,4,3,2

keywords: 

{'concave mirror': [0, 0, 2, 6], 'focal length': [1, 0, 5, 7], 'image': [0, 1, 3, 23], 'object': [1, 0, 11, 43], 'virtual': [0, 0, 1, 0], 'front': [1, 0, 4, 7], 'cm': [2, 0, 7, 20], 'nature': [5, 1, 15, 25]}

Option 1 states that the image will be virtual and not magnified. The term "virtual" means that the image is formed through the extension of light rays, rather than the actual convergence of light rays. However, when an object is placed in front of a concave mirror, the image formed is always real. Therefore, option 1 is incorrect.

Option 2 states that the image will be virtual and magnified. As mentioned earlier, the image formed by a concave mirror is always real. However, the image can be magnified or reduced depending on the position of the object. In this case, the object is placed at a distance of 5 cm in front of the mirror, which is less than the focal length of 15 cm. When the object is placed within the focal length of a concave mirror, the image formed is always virtual, erect, and magnified. Therefore, option 2 is the correct answer.

Option 3 states that the image will be real and not magnified. As mentioned earlier, the image formed by a concave mirror is always real. However, in this case, the image will be magnified since the object is placed within the focal length. Therefore, option 3 is incorrect.

Option 4 states