Tiêu đề AIM NEET Part Test 15.pdf ✅

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[1] TOPIC COVERED Physics: Full Syllabus (Class 11 &12) Chemistry: Full Syllabus (Class 11 &12) Botany: Full Syllabus (Class 11 &12) Zoology: Full Syllabus (Class 11 &12) Duration: 3 hr 20 min Max Marks: 720 Date: 22/06/2022 General Instructions: • The test will contain 200 Questions of Physics, Chemistry, Botany, and Zoology & The test will be objective type. (Attempt only 180). • Every subject contains two Section A-35 Questions and Section B-15 Questions (Attempt only 10). • All 35 Questions of Section-A are Compulsory to attempt. • Time given for test is 200 minutes. • Marking is +4 for every correct answer, –1 for every wrong answer. • You can reattempt the test in case of any technical issue. • Test will start at 2:00 pm and students can attempt test at any time of their own preferences PHYSICS SECTION-A 1. Position of a particle moving along x-axis is given by x = 6t – 3t 2 , where x is in m and t is in s. Time (t) at which particle will momentarily come to rest is (1) 1 s 2 (2) 2 s (3) 1 s (4) 1 s 4 2. A boat is moving with velocity ˆ ˆ (4 6 ) i j + m/s with respect to ground. The water in the river is moving with ˆ ˆ ( 3 4 ) − −i j m/s with respect to ground. The velocity of boat with respect to water is (1) ˆ ˆ (7 10 ) i j + m/s (2) ˆ ˆ ( 2 ) i j + m/s (3) ˆ ˆ ( 5 7 ) − +i j m/s (4) ˆ ˆ ( 5 8 ) − −i j m/s 3. A particle is projected with an initial velocity ˆ ˆ v i j = + (2 4 ) m/s. The equation of trajectory of the particle will be (g = 10 m/s2 ) (Assume horizontal direction as x-axis and vertically upward as positive y-axis) (1) 2 5 2 4 x y x = − (2) 3 2 12 4 y x x = − (3) 2 4 x y x = − (4) 3 2 8 4 y x x = − 4. A particle is moving in a circle of radius R with constant speed. The time period of particle is T = 2s. In a time t = , 3 T if the difference between average speed and magnitude of average velocity of the particle is 4 m s–1 , then the radius R of the circle is nearly (1) 14 m (2) 18.6 m (3) 2.4 m (4) 7.4 m 5. Identify the correct statement. (1) Kinetic friction depends on area of contact for a given normal contact force. (2) Coefficient of kinetic friction is generally less than coefficient of static friction (3) The magnitude of kinetic friction cannot be more than static friction (4) Coefficient of static friction does not depend on surface nature in contact AIM NEET Full Test-05
[2] 6. A block of mass 5 kg is resting on rough surface for which coefficient of kinetic friction is 0.5. When a force of F = 60 N is applied, the acceleration of block will be (g = 10 m/s2) (1) 4.6 m s–2 (2) 3.9 m s–2 (3) 8.2 m s–2 (4) 2.6 m s–2 7. A particle is moving on a circular path of 10 m radius. At any instant of time, its speed is 5 m/s and speed is decreasing at a rate of 1.5 m/s2 . The magnitude of net acceleration at this instant is nearly (1) 4 m/s2 (2) 1 m/s2 (3) 2.9 m/s2 (4) 3.2 m/s2 8. Figure shown are imaginary cube of side a. A uniformly charged rod of length 3 2 a moves towards right at uniform speed of v. At t = 0, the right end of the rod first touches left face of the cube. The correct plot of graph between electric flux through cube versus time is (1) (2) (3) (4) 9. A slab of material of dielectric constant 3 has the same area A as the plates of parallel plate capacitor and thickness 3/4 d, where d is plate separation. The new capacity when slab is inserted between the plates is (1) Unchanged (2) Twice the original value (3) Thrice the original value (4) Four times the original vale 10. Two identical capacitors 1 and 2 are connected in series to a battery as shown in figure. Capacitor 2 contains a dielectric slab of dielectric constant K as shown. Q1 and Q2 are charges stored in capacitors. Now dielectric slab is removed and corresponding charges are Q1 and Q2, then (1) 1 1 Q K 1 Q K  + = (2) 2 2 Q K 1 Q K  + = (3) 2 2 1 2 Q K Q K  + = (4) 1 1 2 Q K Q  = 11. Two charges of equal magnitude q are placed in air at a distance of 2a apart and third charge –2q is placed at mid-point. The potential energy of the system is (1) 2 0 8 q a −  (2) 2 0 3 8 q a −  (3) 2 0 5 8 q a −  (4) 2 0 7 8 q a −  12. Consider the following PV diagram for a monoatomic gas. The ratio of work done by the gas to the change in internal energy of the gas will be (1) 1 : 3 (2) 3 : 1 (3) Zero (4) 1 : 1
[3] 13. A monoatomic gas undergoes a polytropic process which is defined by expression PV3 = constant. The molar specific heat capacity of the gas will be (R is universal gas constant) (1) R (2) 2R (3) 3R (4) 2/R 14. For a heat engine performing between the temperature 273 K and 409.5 K, which among the following cannot be the efficiency? (1) 1 4 (2) 1 5 (3) 1 2 (4) 1 8 15. If C0 and C represent the rms speed of monoatomic gas molecules and the speed of sound in that gas, then (1) C0 > C (2) C0 = C (3) C0 < C (4) None of these 16. Speed of a particle executing SHM is v at mean position. The speed of the particle when its displacement from mean position is equal to 1/4th of the amplitude of the motion is (1) v (2) v/4 (3) 15 4 v (4) 17 4 v 17. The amplitude of the vibrating particle due to superposition of two SHMs in the same direction, 1 sin 3 y t    =  +     and 2 y t =  sin is (1) 1 (2) 2 (3) 3 (4) 2 18. A violin string of length L is fixed at both ends. Which one of these is not a wavelength of a standing wave on the string? (1) 2 L (2) 3 L (3) 2L 2 (4) 3 2 L 19. A ray of light is travelling in air falls on a transparent glass slab of refractive index √3. If the refracted rays and reflected rays are mutually perpendicular. What is angle of incidence? (1) 30° (2) 45° (3) 60° (4) 53° 20. A disc is placed on the surface of pond with liquid of refractive index 5/3. A source of light is placed 4 m below the surface. What is minimum area of the disc so that light does not come out of liquid? (1) 28.26 m2 (2) 42.4 m2 (3) 32.62 m2 (4) 32.6 m2 21. A converging lens of focal length 50 cm is placed co-axially in contact with another lens of unknown focal length. If the combination behaves like a diverging lens of focal length 50 cm. What is power of second lens? (1) –2D (2) 2D (3) 4D (4) –4D 22. Resolving power of compound microscope is given by (symbols have their usual meaning) (1) 2 sin d  =   (2) 1 2 sin d   =  (3) 1.22 d D   = (4) 1 1.22 D d =   23. Laser light of wavelength 630 nm incident on pair of slits produce an interference pattern where bright fringes are separated by 8.1 mm. Another laser light produces interference pattern where bright fringes are separated by 7.2 mm. What is wavelength of second light? (1) 560 nm (2) 615 nm (3) 415 nm (4) 712 nm 24. Identify the correct relation for the given diagram for frequency. (1) ν1 > ν2 < ν3 (2) ν2 = ν3 < ν1 (3) ν3 > ν2 > ν1 (4) ν1 = ν2 = ν3 25. A particle is dropped from a height H. The de-Broglie wavelength of the particle as a function of height, just before it reaches the ground, is proportional to (1) H (2) H–1/2 (3) H° (4) H1/2 26. There are two sources of light, each emitting with power of 100 W. One emits X-rays of wavelength 1 nm and other visible light at 500 nm. What is ratio of number of photons of X-rays to photons of visible light of given wavelength? (1) 1 200 (2) 1 300 (3) 1 400 (4) 1 500