NEET Chemistry Mock Test

Q1)The thermonuclear reaction of hydrogen inside the stars is taking place by a cycle of operations. The particular element which acts as a catalyst is __________ [Mark: 4]

nitrogen

oxygen

helium

carbon

Correct! Wrong!

Q2)In Young’s double slit experiment if monochromatic light used is replaced by white light, then ___________ [Mark: 4]

all bright fringes become white.

all bright fringes have colours between violet and red.

no fringes are observed.

only central fringe is white, all other fringes are coloured.

Correct! Wrong!

Q3)The moment of inertia of a uniform circular disc of radius R and mass M about an axis touching the disc at its diameter and normal to the disc is : [Mark: 4]

MR²

2/5 MR²

3/2 MR²

1/2 MR²

Correct! Wrong!

Q4)Core of electromagnets are made of ferromagnetic material which has [Mark: 4]

high permeability and low retentivity

low permeability and high retentivity

low permeability and low retentivity

Correct! Wrong!

Q5)Sand is being dropped on a conveyor belt at the rate of M kg/s. The force necessary to keep the belt moving with a constant velocity of v m/s will be [Mark: 4]

Mv newton

2 Mv newton

Mv/2 newton

zero

Correct! Wrong!

Q6)When a body is stationary [Mark: 4]

there is no force acting on it

the force acting on it is not in contact with it

the combination of forces acting on it balances each other

the body is in vacuum

Correct! Wrong!

Q7)A beam of light composed of red and green rays is incident obliquely at a point on the face of a rectangular glass slab. When coming out on the opposite parallel face, the red and green rays emerge from : [Mark: 4]

two points propagating in two different non-parallel directions

two points propagating in two different parallel directions

one point propagating in two different directions

one point propagating in the same direction

Correct! Wrong!

Q8)A force F is applied onto a square plate of side L. If the percentage error in determining L is 2% and that in F is 4%, the permissible percentage error in determining the pressure is [Mark: 4]

Correct! Wrong!

Q9)The equation of continuity in incompressible fluid flow is based on the principle of conservation of [Mark: 4]

potential energy of the fluid

kinetic energy of the fluid

total energy of the fluid

fluid mass

Correct! Wrong!

Q10)An electric dipole consists of two charges of 2.0C separated by a distance of 2.0 cm. The dipole is placed in an external electric field of 10⁵NC¯¹. The maximum torque experienced by the dipole is

4 Nm

4 x 10¯⁴Nm

4 x 10¯⁵Nm

4 x 10¯⁴Nm

Correct! Wrong!

NEET Physics

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