Mindblown: a blog about philosophy.
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SOLUTION
1. If 2 gm of NaOH is present is 200 ml of its solution, its molarity will be (A) 0.25 (B) 0.5 (C) 5 (D) 10 2. 234.2 gm of sugar syrup contains 34.2 gm’df sugar. What is the molal concentration of the solution ? (A) 0.1 (B) 0.5 (C) 5.5 (D) 55 3. Atomic…
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SOLID STATE
1. Which one of the following is non-crystalline or amorphous ? (A) Diamond (B) Graphite (C) Glass (D) Common Salt 2. NaCl typecrystal (with coordination no. 6:6) can be converted into CsCl type crystal (with coordination no. 8:8) by applying (A) high temperature (B) high pressure (C) high temperature and high pressure (D) low temperature…
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MOVING CHARGES AND MAGNETISM
1. The current sensitivity of a moving coil galvanometer increases with decrease in : (A) magnetic field (B) area of a coil (C) number of turns (D) None of these 2. Acurrent carrying coil is placed in a uniform magnetic field. If the coll turns through an angle O, then the torque is directly proportional…
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CURRENT ELECTRICITY
1. The speed at which the current travels in a conductor is nearly : (A) 3 x 104 ms-1 (B) 3 x 106 ms-1 (C) 3 x 108 ms-1 (D) 3 x 1010 ms-1 2. The resistance of a human body is about : (A) 12 Ω (B) 120 Ω (C) 12 KΩ (D) 120…
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ELECTROSTATIC POTENTIAL AND CAPACITANCE
1. The dimensions of fall of potential per unit distance are given by : (A) [MLT-3A-1] (B) [ML2T-2A-1] (C) [ML2T-2A-3] (D) [MLT-2A-2] 2. Which of the following is blocked by a capacitor ? (A) A.C. (B) D.C. (C) Both A.C. and D.C. (D) Neither A.C. nor D.C. 3. Two copper spheres of the same radius,…
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ELECTRIC CHARGES AND FIELDS
1. Which one of the following is the unit of electric field ? (A) Coulomb (B) Newton (C) Volt (D) N/C 2. If an electric dipole is kept in a uniform electric field then resultant electric force on it is : (A) always zero (B) never zero (C) depend upon capacity of dipole (D) None…
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COMMUNICATION SYSTEMS
1. Who undertook the first space walk and in which year ? (A) Leonov, 1965 (B) Neil Armstrong, 1969 (C) Rakesh Sharma, 1998 (D) None of these 2. The term used “to collect the information about an object and a place without physical contact” is called : (A) modulation (B) communication (C) amplification (D) remote…
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SEMI CONDUCTOR ELECTRONICS
1. Bonds in a semiconductor : (A) trivalent (B) covalent (C) bivalent (D) monovalent 2. Number of electrons in the valence shell of a semiconductor is : (A) 1 (B) 2 (C) 3 (D) 4 3. Semiconductors of both p-type and n-type are produced by : (A) ionic solids (B) covalent solids (C) metallic solids…
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NUCLEI
1. How many electrons are contained in 23892U nucleus ? (A) 92 (B) 146 (C) 238 (D) O 2. Chadwick was awarded the Nobel prize in Physics in 1935 for his discovery of : (A) electron (B) proton (C) neutron (D) None of these 3. The density of a nucleus is of the order of:…
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ATOMS
1. Who explained the splitting of special lines in magnetic field ? (A) Zeeman (B) Bohr (C) Summerfield (D) Einstein 2. The mass of a neutron is : (A) 1.00866 u (B) 1.0866 u (C) 1.866 u (D) 0.1866 u 3. Isobars have the same : (A) A (B) Z (C) N (D) All the…
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