All questions

• Q 3. Select the correct option (a) India’s southernmost point is known as : Q 3. Select the correct option (a) India’s southernmost point is known as : (1) Lakshadweep (2) Kanyakumari (3) Indira Point (4) Port Blair... Location and Extent 1 answer
• c) Describe the latitudinal and longitudinal extent of India and Brazil. (i) The extent of the mainland India is 8°4’N to 37°6’N latitudes and between 68°7’E to 97°25’E longitudes. (ii) Indira Point is the souther... Location and Extent 1 answer
• b) How are Brazil and India different from each other in terms of location? (i) India is located in the northern and eastern hemispheres of the Earth. It is located in the southern part of the Asian continent. ii) Th... Location and Extent 2 answers
• a) What problems did Brazil and India face after independence? Q2 There were many common problems that Brazil and India faced after independence. Some of them are: management – The resources of both the cou... Location and Extent 1 answer
• Q 1) Are the sentences right or wrong. ? Rewrite the wrong ones (a) Brazil is mainly located in the Southern Hemisphere. Answer: Right (b) Tropic of Capricorn passes through the middle of India. Answer: W... Location and Extent 1 answer
• Crystals can be classified into _______ basic crystal units. (A) 3 (B) 7 (C) 14 (D) 4 B) 7 is the correct option Crystals can be classified into 7 basic crystal units. Chemistry 1 answer
• Which of the following is a crystalline solid? (A) Glass (B) Rubber (C) Plastic (D) Sugar Correct option is D Sugar Sugar is a crystalline solid while glass, rubber and plastic are amorphous solids. Chemistry 1 answer
• Amorphous solids are _______. (A) true solid substances (B) substances with ordered (c)super cooled liquids is correct option : Amorphous solids are super cooled liquids Chemistry 1 answer
• Amorphous substances have _______. (i) definite heat of fusion (ii) only short range Answer: (D) (ii) and (iv) are correct In an amorphous solid (glass, rubber, plastics) the particles are arranged in a regular way only over... Chemistry 1 answer
• Amorphous solids _______. (A) possess sharp melting points (C) is the correct option Amorphous solids do not undergo clean cleavage when cut with knife Chemistry 1 answer
• A solid having irregular shape is called _______ solid (A) amorphous is correct answer: A solid having irregular shape is called amorphous solid Chemistry 1 answer
• The ability of crystalline solids to change values of physical properties when measured in different directions is called _______. C) Anisotropy is correct answer : The ability of crystalline solids to change values of physical properties when measured in different direc... Chemistry 1 answer
• Graphite, diamond and fullerene are the polymorphic forms of _______. B) Carbon is the correct option Chemistry 2 answers
• Which among the following solids is NOT soft? Copper among the following solids is NOT soft Chemistry 2 answers
• consider statement-1 is a fallacy. statement-2 is a tautology (b) Statement I is true, Statement II is true; Statement II is not a correct explanation for Statement I Explanation: Statement I and II are... Uncategorized 1 answer
• A student measured the length of a rod and wrote it as 3.50 cm. Which instrument did he use to measure it? Measured length of rod = 3.50 cm That means least count of the measuring instrument should be 0.01 cm = 0.1 mm For vernier scale 1 main scal... Physics 1 answer
• Let E0 denote the dimensional formula of the permittivity of vacuum. If M = mass, L = length, T = time and A = electric current, then: Correct option is B From Coulomb's law we know, F = 1 over 4π in ₀q₁q₂ over r² therefore in ₀ = 1 over 4π q₁q₂ over Fr² Hence, [ in ₀ ] = [... Physics 1 answer
• Resistance of a given wire is obtained by measuring the current flowing in it and the voltage difference applied across it. If the percentage Correct option is A) 6% We know R = V over I thereforeΔ R over R = Δ V over V + Δ I over I Percentage error in R = Δ R over R × 100 = Δ V ov... Physics 1 answer
• The respective number of significant figures for the numbers 23.023, 0.0003 and 2.1 10–3 are Corret option is 1) 5,1,2 23.023 has 5 significant figures. 0.0003 has 1 significant figure. 2.1 × 10^(–3) has 2 significant figures. Physics 1 answer
• A body of mass m = 3.513 kg is moving along the x-axis with a speed of 5.00 ms−1. The magnitude of its momentum is recorded as Momentum, p = m × v = 3.513 × 5.00 = 17.565 kg m/s = 17.6 kg m/s Here number of significant digits in m is 4 and in v is 3, so, p must have... Physics 1 answer
• The dimension of magnetic field in M, L, T and C (coulomb) is given as Correct option is C) MT⁻¹C⁻¹ We know that, Lorentz force | overrightarrow F | = | qoverrightarrow v × overrightarrow B | therefore [B]=[F] o... Physics 1 answer
• Out of the following pair, which one does NOT have identical dimensions is A angular momentum and Planck's constant Correctt option is C) moment of inertia and moment of a force Moment of inertia, I = Mr² therefore [I] = [ML²] Moment of force, overrightarr... Physics 1 answer
• Which one of the following represents the correct dimensions of the coefficient of viscosity? option 1 is correct From stokes law, Viscous force F = 6π η rv ⇒ η = F over 6π rv therefore[η] = [MLT^(- 2)] over [L][LT^(- 1)] ⇒ [η] = [ML^... Physics 1 answer
• The physical quantities not having same dimensions are torque and work Correct option is 2) momentum and Planck's constant Momentum = mv = [MLT^(- 1)] Planck's constant, h = E over v=[ML²T^(- 2)] over [T^(- 1)]=... Physics 1 answer