A student used a device (X) to obtain/focus the image of a well illuminated distant building on a screen
Light (10)A student used a device (X) to obtain/focus the image of a well illuminated distant building on a screen (S) as shown below in the diagram. Select the correct statement about the device (X).
- This device is a concave lens of focal length 8 cm.
- This device is a convex mirror of focal length 8 cm.
- This device is a convex lens of focal length 4 cm.
- This device is a convex lens of focal length 8 cm.
Answer
D
- Exam Year: 2015
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