In a compound microscope, the focal length of the objective is 2.5 cm and of eye lens
In a compound microscope, the focal length of the objective is 2.5 cm and of eye lens is 5 cm.…
7 years ago
Physics
If the image formed by a convex mirror of focal length 30 cm is a quarter of the size
If the image formed by a convex mirror of focal length 30 cm is a quarter of the size of…
7 years ago
A concave mirror of focal length f₁ is placed at a distance d from a convex lens
A concave mirror of focal length f₁ is placed at a distance d from a convex lens of focal length…
7 years ago
A ray of light is incident at an angle of incidence i, on one face of a prism
A ray of light is incident at an angle of incidence i, on one face of a prism of angle…
7 years ago
The diameter of the eye ball of a normal eye is about 2.5 cm. The power of the eye
The diameter of the eye ball of a normal eye is about 2.5 cm. The power of the eye lens…
7 years ago
For having large magnification power of a compound microscope
For having large magnification power of a compound microscope Options (a) length of the microscope tube must be small (b)…
7 years ago
The reddish appearance of the sun at sunrise and sunset is due to
The reddish appearance of the sun at sunrise and sunset is due to Options (a) the colour of the sky…
7 years ago
For the normal eye, the cornea of eye provides a converging power of 40D
For the normal eye, the cornea of eye provides a converging power of 40D and the least converging power of…
7 years ago
The radius of curvature of the convex face of a plano-convex lens is 12 cm
The radius of curvature of the convex face of a plano-convex lens is 12 cm and the refractive index of…
7 years ago
Radii of curvature of a converging lens are in the rato 1:2. Its focal length
Radii of curvature of a converging lens are in the ratio 1:2. Its focal length is 6 cm and refractive…
7 years ago