NEET TEST SERIES 133 PHYSICS -

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1. A body falls freely from the top of a tower. It covers 36% of total height in the last second before striking the ground. Find height of the tower.

(a) 50 m
(b) 250 m
(c) 75 m
(d) 125 m

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2. The equation of motion of a projectile is

What is the range of projectile?

(a) 12 m
(b) 16 m
(c) 20 m
(d) 24 m

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3. A body is moving in a circle of radius 80 m with a speed of 20 m/s which is decreasing at a rate of 5 m/s² at an instant. The angle made by its acceleration with its velocity is

(a) 45°
(b) 90°
(c) 135°
(d) 0°

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4. If all the polar ice on Earth melts then how will it affect the duration of a day? The duration of a day:

(a) increases
(b) decreases
(c) remains constant
(d) Data insufficient

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5. An S.H.M is given by y = 5[sin(3πt) + √3cos(3πt)] What is the amplitude of motion?

(a) 5
(b) 2.5
(c) 20
(d) 10

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11. A car moving at a speed of 72 km/hr can be stopped in a distance of 40 m after brakes are pressed. If the same car is moving at a speed of 144 km/hr then after how much distance it will stop after braking?

(a) 80 m
(b) 160 m
(c) 200 m
(d) 240 m

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12. If two balls are projeted at angles of 45 deg and 60 deg and the maximum heights reached are same, what is the ratio of initial velocities?

(a) 2:3
(b) 3:2
(c) √2:√3
(d) √3:√2

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13. In which of the following cases the potential energy is defined

(a) non-conservative forces only
(b) conservative forces only
(c) both conservative and non-conservative forces
(d) none of these

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14. A current of 4 × 10^-3 A is flowing in a long straight conductor. The value of line integral of magnetic field around the closed path enclosing the straight conductor will be

(a) 1.6 π× 10⁹ Wbm^-2
(b) 1.6 × 10⁹ Wbm^-2(c) 1.6 × 10⁹ Wbm²
(d) 1.6 π× 10^-7 Wbm^-2

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15. The magnetic flux across a loop of resistance 10 Ω is given by 10t² – 8t + 6 Wb. How much current is induced in the loop after 2s?

(a) 3.2 A
(b) 2.2 A
(c) 4.2 A
(d) 1.2 A

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16. Consider the following statements and select the incorrect statement.

(a) The presence of a large magnetic flux through a coil maintains a current in the coil if the circuit is continuous.
(b) A coil of a metal wire kept stationary in a non- uniform magnetic field has an e.m.f induced in it.
(c) A charged particle enters a region of uniform magnetic field at an angle of 85° to the magnetic lines of force, the path of the particle is a circle.
(d) There is no change in the energy of a charged particle moving in a magnetic field although a magnetic force is acting on it.

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17. A coil of circular cross-section having 1000 turns and 4 cm² face area is placed with its axis parallel to a magnetic field which decreases by 10 ^-2Wbm^-2 in 0.01 s. The e.m.f. induced in the coil is:

(a) 400Mv
(b) 200mV(c) 4mV
(d) 0.4mV

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18. In a Young’s double slit experiment, light of 500 nm is used to produce an interference pattern. When the distance between the slits is 0.05 mm, the angular width (in degree) of the fringes formed on the distance screen is close to:

(a) 0.17°
(b) 0.57°
(c) 1.7°
(d) 0.07°

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19. Given below are two statements:
Statement I: If the Brewster’s angle for the light propagating from air to glass is , then Brewster’s angle for the light propagating from glass to air is π/2 – θ_BStatement II: The Brewster’s angle for the light propagating from glass to air is tan^-1 (μ_g) where μ_g is the refractive index of glass.
In the light of the above statements, choose the correct answer from the options given below:

(a) Both Statements I and Statement II are true.
(b) Statement I is true but Statement II is false.
(c) Both Statement I and Statement II are false.
(d) Statement I is false but Statement II is true.

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20. A shell is fired from a fixed artillery gun with an initial speed u such that it hits the target on the ground at a distance R from it. If t₁ and t₂are the values of the time taken by it to hit the target in two possible ways, the product is t₁t₂

(a) R/4g
(b) R/g
(c) R/2g
(d) 2R/g

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NEET TEST SERIES 133 PHYSICS

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