An object is placed 10 cm in front of a convex lens of focal length 15 cm. The image produced will be

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Q: 32 (NDA-I/2015)
An object is placed 10 cm in front of a convex lens of focal length 15 cm. The image produced will be

question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,32,38,19,32,16,3

keywords: 

{'focal length': [1, 0, 5, 7], 'convex lens': [0, 0, 0, 4], 'image': [0, 1, 3, 23], 'object': [1, 0, 11, 43], 'cm': [2, 0, 7, 20], 'front': [1, 0, 4, 7], 'size': [1, 0, 6, 4]}

Option 1: Real and magnified. A convex lens is thicker in the middle and thinner at the edges. When an object is placed in front of a convex lens, the light rays from the object converge to form an image. In this case, since the object is placed 10 cm in front of the lens and the focal length is 15 cm, the image will be formed on the same side as the object. Due to the characteristics of a convex lens, the image formed will be virtual and magnified. Thus, option 1 is incorrect.

Option 2: Virtual and magnified. As mentioned above, when an object is placed in front of a convex lens, the light rays converge to form an image. In this case, since the object is placed 10 cm in front of the lens and the focal length is 15 cm, the image will be formed on the same side as the object. However, the image formed will be virtual, meaning it cannot be projected onto a screen. Additionally, it will be magnified, meaning it will appear larger than the original object. Hence, option 2 is the correct answer.

Option 3: Virtual and reduced in size. This option is incorrect because, as mentioned above, the image formed by