Choose incorrect option:...

Choose incorrect option:

The size of image on the retina is roughly proportional to the angle subtended by the object on the eye. This angle is knows as visual angle. The optical instruments are used to increase the visual angle.

In normal adjustement, eye is least strained and final image is formed at infinity.

The magnifying power is written with a unit `X`.

All options are correct.

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A thin rod of mass m and length l is free to rotate on a smooth horizontal plane about its one fixed end. When it is at rest, it receives a horizontal impulse J at its other end, at angle of 37^(@) with the length. Choose incorrect option immediately after impact:

Angular momentum of the rod about fixed axis of rotation is `0.6Jl`

Angular velocity of the rod fixed of rotation is `(1.8J)/(ml)`

Kinetic energy of the rod is `(0.2J^(2))/(m)`

Linear velocity of the centre of mass of the rod is `(9)/(10)(J)/(m)`

Two identical glass slabs of same thickness are joined to form an L shape as shown. A ray is incident on the combination as shown (in the plane of paper). The final emergent ray will choose, incorrect options(s):

Come out at point A in the same direction as that of original ray.

Come out at point A but not in the same direction as that of origional ray.

Does not come out at point A but is in the same direction as original ray.

Does not come out at point A and it is not in same direction as origional ray.

Choose the incorrect option/options :

If acceleration is positive than speed of particle is increasing.

If acceleration is negative than speed of particle is decreasing.

In projectile motion speed of particle first decreases than increases.

In ground to ground projectile motion horizontal range cannot be equal to the maximum height from the ground.