NEET WEEKLY TEST PHYSICS (15.11.2025)

1. The test is of 90 minutes duration and Test Booklet contains 45 questions. Each question carried 4 marks for each correct response, the candidate will get 4 marks. For each incorrect response, one mark will be deducted from the total scores.
2. Use of Cell phone/Electronics gadgets/Calculator etc. are not allowed.

PHYSICS

1. A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10 V. The potential at a distance of 2 cm from the centre of the sphere is

1) zero
2) 10 V
3) 4 V
4) 10/3 V

2. The amount of charge q passed in time t through a cross-section of a wire is q = 5t²+ 3t + 1. The value of current at time t = 5 s is

1) 9 A
2) 49 A
3) 53 A
4) None of these

3. A capacitor of 4 μF is connected as shown in the circuit. The internal resistance of the battery is 0.5 ohm. The amount of c

1) 0 μC
2) 4 μC
3) 16 μC
4) 8 μC

4. A combination of parallel plate capacitors is maintained at a certain potential difference. When a 3 mm thick slab is introduced between all the plates, in order to maintain the same potential difference, the distance between the plates is increased by 2.4 mm.

Find the dielectric constant of the slab.

1) 3
2) 4
3) 5
4) 6

5. The I-V characteristics shown in figure represents 


1) ohmic conductors
2) non-ohmic conductors
3) insulators
4) superconductors

6. Which of the following is the correct equation when Kirchhoff’s loop rule is applied to the loop BCDEB?

1) –i₃R₃ – i₃ R₄– i₂ R₂ = 0
2) –i₃R₃ -i₃ R₄ + i₂ R₂ = 0
3) –i₃R₃ + i₃ R₄ + i₂ R₂ =0
4) i₃R₃ + i₃ R₄ + i₂ R₂ =0

7. A battery of internal resistance 8Ω is connected to the network of resistances as shown. In order that the maximum power can be delivered to the network, the value of R in Ω should be

1) 2
2) 3
3) 4
5) 8

8. Which of the following statements is false?

1) A rheostat can be used as a potential divider
2) Kirchhoff’s second law represents energy conservation
3) Wheatstone bridge is the most sensitive when all the four resistances are of the same order of magnitude
4) In a balanced Wheatstone bridge if the cell and the galvanometer are exchanged, the null point is disturbed.

9. In the circuit shown in figure the current through


1) the 3 Ω resistor is 0.50 𝐴.
2) the 3 Ω resistor is 0.25 𝐴.
3) the 4 Ω resistor is 0.50 𝐴
4) the 4 Ω resistor is 0.25 𝐴.

10. In a region, the potential is represented by V (𝑥,𝑦,𝑧) = 6𝑥 – 8𝑥𝑦 – 8𝑦 + 6𝑦𝑧, where V is in volts and 𝑥, 𝑦,𝑧 are in metres. The electric force experienced by a charge of 2 coulomb situated at point (1, 1,1) is:

1) 6√5 N
2) 30 N
3) 24 N
4) 4√35 N

11. To obtain 3 𝜇𝐹 capacity from three capacitors of 2 𝜇𝐹 each, they will be arranged.

1) all the three in series
2) all the three in parallel
3) two capacitors in series and the third in parallel with the combination of the first two
4) two capacitors in parallel and the third in series with the combination of the first two

12. A ball is thrown vertically upwards with an initial speed of 29.4 m/s. The time taken by the ball to reach its starting position is

1) 3 s
2) 10 s
3) 6 s
4) 5 s

13. A stone is dropped from a height h. It hits the ground with momentum P. If the same stone is dropped from a height 100% more than the initial height, the momentum when it will hit the ground changes by

1) 200%
2) 100%
3) 88% 
4) 41%

14. The slope of the velocity-time graph represents

1) acceleration
2) time
3) frequency
4) momentum

15. For a uniform circular motion, the angle between the centripetal acceleration and radius vector is

1) 30°
2) 0°    
3) 60°
4) 180°

16. Suppose a sine graph represents the velocity-time graph of a particle. If n represents an integer, the angles through which the velocity of the particle becomes zero will be

17. A particle experiences a constant acceleration for 20s after starting from rest. If is travels a distance x in the first 10s and a distance y in the next 10s, then

1)  x=y
2) x=2y
3) 2x=y
4) 2x=5y

18. A bullet is to be fired with a speed of 2000 m/s to hit a target 200 m away on a level ground. If g = 10 m/s², the gun should be aimed

1) directly at the target
2) 2 cm above the target
3) 3 cm above the target
4) 5 cm above the target

19. The ratio of angular speeds of a minute hand and hour hand of a smooth analog watch is

1) 6 : 1
2) 12 : 1
3) 1 : 6
4) 1 : 12

20. The earth of radius 6400 km makes one revolution about its own axis in 1440 mins. The centripetal acceleration of a point (in km/hr²) of its equator is approximately

1) 50π²     
2) 44π² 
3) 44π
4) 50π

21. The horizontal range of a projectile fired at an angle of 15° is 50 m. If it is fired with the same speed at an angle of 45°, the new range will be

1) 50 m
2) 120 m
3) 150 m
4) 100 m

22. For a particle moving in uniform circular motion consider the statements
A. At any instant, its linear acceleration is always increasing 
B. The radial acceleration always points towards the circumference of the path
C. Its angular velocity is given by 𝜔=2𝜋/f , where f is frequency
Choose the correct options

1) All statements are true
2) Only A and B are false
3) Only C is false
4) All statements are false

23. The rms value of emf given by =8√2 sin𝜋𝑡+6√2 sin2𝜔𝑡

1) 8
2) 6
3) 10
4) 14

24. A 50 Hz a.c. source of 20 volts is connected across RC series circuit. The voltage across R is 12 volt. The voltage across C is

1) 8 V
2) 16V
3) 10 V
4) None

25. In a pure capacitive circuit if the frequency of ac source is doubled, then its capacitive reactance will be

1) remains same
2) doubled
3) halved
4) zero

26. An 8 F capacitor is connected across a 220 V, 50 Hz line. What is the peak value of charge through the capacitor?

1) 2.5×10^-3 C
2) 2.5×10^-4 C
3) 5×10^-5 C
4) 7.5×10^-2 C

27. Voltage and current in an AC circuit are given by
V=5sin(100𝜋𝑡−𝜋/6) volts and
t =4sin(100𝜋𝑡+𝜋/6) ampere.

1) The voltage leads the current by 30°
2) The current leads the voltage by 30°
3) The current leads the voltage by 60°

4) The voltage leads the current by 60°

28. The peak voltage of the AC source is equal to:

1) The value of voltage supplied to the circuit
2) The rms value of the AC source
3) √2 times the rms value of the AC source
4) 1/√2 times the rms value of the AC source

29. The amplitude of current flowing through LCR series circuit is 5√2 The impedance of the circuit is (in ohm)

1) 4√2
2) 5/ √2
3) 4
4) 10

30. If alternating current in a circuit is given by I= I₀sin2πnt then the time taken by the current to change from rms value to zero is equal to

1) (1/n)
2) (1/2n)
3) (1/4n)
4) (1/8n)

31. In a.c. circuits, the a.c. meters measure

1) r. m. s. values.
2) peak values.
3) mean values.
4) mean square values.

32. A capacitor behaves like an infinite resistance for

1) DC circuits.                 
2) AC circuits.
3) DC as well as AC circuits.
4) neither AC nor DC circuits

33. The effective value of current
𝐼=2𝑠𝑖𝑛100𝜋𝑡 + 2𝑐𝑜𝑠(100𝜋𝑡+60⁰) is (in ampere)

1) 2 A
2) 2√2
3) 2/√2
4) √2

34. A slit of width is illuminated by white light. For red light (λ=6500Å), the first minima are obtained at θ=30°. Then the value of slit width will be

1) 3250Å
2) 6.5× mm
3) 1.3 μm
4) 2.6× mm

35. Two periodic waves of intensities I₁and I₂ pass through a region at the same time in the same direction. The sum of the maximum and minimum intensities is

36. A beam of light of λ=600nm from a distance source fall on a single slit 1mm wide and the resulting diffraction pattern is observed on a screen 2m away. The distance between first dark fringes on either side of the central bright fringe is

1) 1.2cm
2) 1.2mm
3) 2.4cm
4) 2.4mm

37. Which of the following is the path difference for destructive interference?

1) n(λ+1)
2) (2n+1)λ/2
3) nλ
4) (n+1)λ/2

38. The two slits are 1 mm apart from each other and illuminated with a light of wavelength 5×10⁻⁷ If the distance of the screen is 1 m from the slits, then the distance between third dark fringe and fifth bright fringe is

1) 1.5 mm
2) 0.75 mm
3) 1.25 mm
4) 0.625 mm

39. A Young’s double slit experiment uses a monochromatic source. The shape of the interference fringes formed on a screen is

1) parabola
2) straight line
3) circle
4) hyperbola

40. Two slits are made one millimetre apart and the screen is placed one metre away. When blue-green light of wavelength 500 nm is used, the fringe separation is

1) 5×10⁻⁴m
2) 2.5×10⁻³m
3) 2×10⁻⁴m
4) 10×10⁻⁴m

41. In a double slit experiment, the distance between slits in increased ten times whereas their distance from screen is halved then the fringe width is

1) Becomes 1/20
2) Becomes 1/90
3) it remains same
4) becomes 1/10

42. In a Young’s double slit experiment an electron beam is used to obtain interference pattern. If the speed of electron decreases then

1) distance between two consecutive fringes remains the same
2) distance between two consecutive fringes decreases
3) distance between two consecutive fringes increases
4) None of these

43. The refractive index of a medium is √3. What is the angle of refraction, if unpolarizing light is incident on the polarising angle of the medium?

1) 60°
2) 45°
3) 30°
4) 0°

44. Two monochromatic light beams of intensity 16 and 9 units are interfering. The ratio of intensities of bright and dark parts of the resultant pattern is:

1) 16/9
2) 4/3
3) 7/1
4) 49/1

45. In Young’s double slit experiment

1) All the bright fringes will be coloured.
2) All the bright fringes will be white.
3) The central fringe will be white
4) No stable interference pattern will be visible.