The human eye is like a camera and hence it contains a system of lens. The eye lens forms

• a straight or upright, real image of the object on the retina

• an inverted, virtual image of the object on the retina

• an inverted, real image of the object on the retina

• a straight or upright, real image of the object on the iris

Magnetic Resonance Imaging (MRD) is used in medical diagnosis to obtain images of our internal body organs. This is primarily possible because

• our body possesses a permanent magnet

• MRI uses an external magnet to generate a magnetic field in our body

• MRI uses an external electric field to generate magnetic field in our body

• ions motion along our nerve cells generates magnetic fields

Imagine a current-carrying wire with the direction of current downward or into the page. The direction of magnetic field lines is

• clockwise

• anticlockwise

• into the page

• out of the page

The motion of a particle is given by a straight line in the graph given above drawn with displacement (x) and time (t). Which one among the following statements is correct?

• The velocity of the particle is uniform

• The velocity of the particle is non-uniform

• The speed is uniform and the particle is moving on a circular path

• The speed is non-uniform and the particle is moving on a straight line path

An object is undergoing a non-accelerated motion. It's rate of change in momentum is

• a non-zero constant

• zero

• not a constant

• None of the above

The pH of fresh milk is 6. When it turns sour, the pH

• becomes < 6

• remains the same, i.e., 6

• becomes > 6

• becomes neutral, i.e., 7

The motion of an electron in presence of a magnetic field is depicted in the figure given above. The force acting on the electron will be directed

• into the page

• out of the page

• opposite to the motion of the electron

• along the motion of the electron

The displacement of a particle is given by x = cos² ωt. The motion is

• simple harmonic

• periodic but not simple harmonic

• non-periodic

• None of the above

Which one among the following hormones stimulates the plant cells to grow in a manner such that the plant appears to be bent towards light?

• Cytokinin

• Auxin

• Gibberellin

• Abscisic acid

A motor vehicle is moving on a circle with a uniform speed. The net acceleration of the vehicle is

• zero

• towards the centre of the circle

• away from the centre along the radius of the circle

• perpendicular to the radius and along the velocity