[email protected]
+91-9920808017
6. The image formed by a convex lens when the object lies at the focus is (NTSE Mizoram, Stage-I, 2012-13)
Virtual and erect
Real and erect
Real and inverted
Virtual and inverted
Your email address will not be published. Required fields are marked *
Report
Name
Email
Website
Save my name, email, and website in this browser for the next time I comment.
Comment
7. Two different sources of light A and B have wavelength 0.7 μm and 0.3 μm respectively. Then which of the following statement is true? (NTSE Delhi, Stage-I, 2012-13)
A has greater energy then B
B has greater energy then A
Both have equal energy
None of these
8. An object is placed in front of a concave mirror of radius of curvature 15 cm, at a distance of 10 cm. The position and nature of the image formed is (NTSE Panchkula, Chandigarh, Stage-I, 2012-13)
+30 cm, virtual and erect
+30 em, real and inverted
-30 em, virtual and erect
-30 em, real and inverted
9. If a lens has power -2.5, then it is a (NTSE Madhya Pradesh, Stage-I, 2012-13)
Convex lens, with a focal length of 40 cm
Concave lens with a focal length of 40 cm
Convex lens with a focal length of 0.4 cm
Concave lens with a focal length of 0.4 em
10. What should be the minimum height of a plane mirror so that a 6 ft tall man can see his full view image standing in front of the mirror? (NTSE Odisha, Stage-I, 2012-13)
6 ft
12 ft
3 ft
2 ft
Login with Facebook
Login with Google
