The speed of light with the rise in the temperature of the medium____________?
The speed of light with the rise in the temperature of the medium____________?
A. Decrease
B. Increase
C. Remain the same
D. First decrease then increase
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Frog Heart has how many chambers?
Frog Heart has how many chambers?A. 2
B. 3
C. 4
D. 5Which of the following metal occurs in free state ______________?
Which of the following metal occurs in free state ______________?
A. Lead
B. Iron
C. Mercury
D. CopperWhich of the following slows down the formation of RBCs (Red Blood Cells)?
Which of the following slows down the formation of RBCs (Red Blood Cells)?A. Vitamin B-1
B. Vitamin C
C. Vitamin D
D. Vitamin EAtom is made up of____________different kinds of subatomic particles:
Atom is made up of____________different kinds of subatomic particles:A. Three
B. Two
C. Four
D. NoneA convex mirror always ___________ ?
A convex mirror always ___________ ?A. Forms a real image
B. Forms a virtual image
C. Forms an inverted image
D. Produces a larger imageIn convex mirrors light rays from a point always gets diverged (they dont meet at any point). So we have to extend them behind the mirror so that they appear to meet. Since image is formed behind of mirror, they cant be received on screen. So it is not real image. Thus it is a virtual image.
The Mirror used in the Automobiles are___________?
The Mirror used in the Automobiles are___________?
A. Concave
B. Convex
C. Plains
D. Reflective