a. Polymers b. Copolymer c. Addition d. Condensation polymer Ans. b (30)
PRACTICE TEST
(a) Half (b) Same (c) Double …
(a) Equal to that on A (b) Four times that on A (c) Two times that on A (d) Half that on A Explanation-B (24)
(a) v/R (b) Continuously increasing (c) Dependent on mass (d) Independent of radius (R) Ans. a (62)
(a) 1/5 (b) 5/2 (c) 3/5 (d) 5/7 Ans. b (6)
(a) GM/R2 (b) m0 (c) mM (d) 1/R3/2 …
(a) Angular velocity and total energy (kinetic and potential) (b) Total angular momentum and total energy (c) Angular velocity and moment of inertia about the axis of rotation (d) Total angular momentum and moment of inertia about …
(a) 8 (b) 6 (c) 4 (d) 2 Ans. d (6)
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
(a) Revolves about the polar axis (b) Has a time period less than that of the near earth satellite (c) Moves faster than a near earth satellite (d) Is stationary in the space Answer: a (12)
(a) Green algae (b) Brown algae (c) Red algae (d) Blue green algae Ans. c (8)
(a) R2 (b) R–2 (c) R4 (d) R–4 Answer: c (17)
(a) It is a force (b) It has no unit (c) It has same value in all systems of units (d) It depends on the value of the masses (e) It does not depend on the nature of the …
(a) 10 m (b) 8 m (c) 6 m (d) 4 m Ans. d (42)
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
(a) 1 rad/sec (b) 7 rad/sec (c) 5 rad/sec (d) √12 rad/sec Ans. c (571)
(a) 0.5 sec (b) 0.2 sec (c) 0.4 sec (d) 0.25 sec answer : a (29)
(a) 2.5 km/hour (b) 20 km/hour (c) 40 km/hour (d) 50 km/hour answer : c (4)
(a) Particle going in a circle (b) Particle going along a straight line (c) The momentum of the particle constant (d) Acceleration of the particle constant ANSWER: c (9)
(a) Zero (b) 500 N (c) 1000 N (d) 2000 N ANSWER : b (10)
(a) 0.3 N (b) 30 N (c) 300 N (d) 3000 N ANSWER : b (6)
(a) π rad/sec (b) 2π rad/sec (c) 4 π rad/sec (d) 4π2 rad/sec Ans. c (26)
(a) (KL+KM+LM)/3 (b) (KL+KM)/3 (C) (KL+LM)/3 (d) (KM+LM)/3 Ans. b (34)
Punjab Police coaching institute FLAME INSTITUTE SCF-18 TOP FLOOR PHASE-7 MOHALI 9888949978 (20)
(a) Decreases (b) Increases (c) Unchanged (d) None of these Ans. (b) In the course of imbibition the volume of the system increases i.e., swelling occurs. The total volume of the water imbibed plus the imbibing material is less after imbibition …
(a) Protein (b) Cellulose (c) Both (a) and (b) (d) Minerals Ans. (c) A dry wooden piece when soaked in water shows considerable swelling and sometimes leads to considerable increase in volume, which is due to imbibition. (30)
(a) Imbibition (b) Absorption (c) Diffusion (d) Adsorption Ans. (a) Meterials capable of imbibition such as proteins and cellulose in living beings cause seeds to swell when they are placed in water. (9)
(a) Which holds whole of the water that enters into it (b) Which allows percolating the water slowly from it (c) Which allows water to pass very quickly from it (d) Which allows limited amount of water to retain into …
ਉਹ ਵਡੀ ਤੋਂ ਵਡੀ ਸੰਖਿਆ ਜੋ 25, 73, 97ਨਾਲ ਭਾਗ ਕਰਨ ਤੇ ਹਰ ਵਾਰ ਸਮਾਨ ਬਚਾਉਦੀ ਹੈ। a) 6 b) 21 c) …
ਛੋਟੀ ਤੋਂ ਛੋਟੀ ਵਰਗ ਸੰਖਿਆ ਜੋ 8, 12, 16, 26 39 52 ਨੂੰ ਪੂਰਾ ਪੂਰਾ ਵਿਭਾਜਿਤ ਹੋਵੇ। a) 1444 b) 2304 c) 1521 d) 24336 Answer: d (14)
तीन अलग-अलग संख्याओं का L.C.M 120 है। निम्नलिखित में से कौन सा उनका H.C.F नहीं हो सकता है? ਤਿੰਨ ਅਲਗ ਅਲਗ ਸੰਖਿਆਵਾਂ ਦਾ L.C.M 120 ਹੈ ਹੇਠ ਲਿਖਿਆ ਵਿਚੋਂ ਕਿਹੜਾ ਇਸਦਾ H.C.F ਨਹੀਂ ਹੋ ਸਕਦਾ। a) 8 …
दो संख्याओं का H.C.F 32 है और उनका L.C.M 320 है। यदि संख्याओं में से एक 64 है, तो दूसरी है ਦੋ ਸੰਖਿਆਵਾਂ ਦਾ H.C.F 32 ਹੈ ਅਤੇ ਉਹਨਾਂ ਦਾ L.C.M 320 ਹੈ। ਜੇਕਰ ਸੰਖਿਆਵਾਂ ਵਿਚੋ ਇਕ 64 ਹੈ ਤਾਂ …