Multiple Choice
Eyes: A man is nearsighted and cannot see things clearly beyond 110 cm from his eyes. What is the focal length of the contact lenses that will enable him to see very distant objects clearly?
A) 50 cm
B) - 50 cm
C) - 110 cm
D) 110 cm
E) -30 cm
Correct Answer:

Verified
Correct Answer:
Verified
Q26: Polarization: The critical angle for an air-glass
Q27: Compound microscope: The distance between the object
Q28: Refraction at a curved surface: A fish
Q29: Eyes: A machinist with normal vision has
Q30: Thin lenses: An object is placed 100
Q32: Spherical mirrors: A concave spherical mirror with
Q33: Plane mirrors: How far are you from
Q34: Thin lenses: An object is placed in
Q35: Polarization: The following are positioned in sequence:
Q36: Total internal reflection: The critical angle in