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The time period of a pendulum depends upon its (A) Mass of bob (B) Length of string (C) Dimension of bob (D) Material of the bob

The time period of a simple pendulum is given by, T = 2π × √(L/g) Where l is the length of pendulum string and g is the... View Article

The amount of heat energy required to raise the temperature of 1 g of Helium at NTP, from T1K to T2K is (A) (3/8)NakB(T2-T1) (B) (3/2)NakB(T2-T1) (C) (3/4)NakB(T2-T1) (D) (3/4)NakB(T2/T1)

Given Mass of helium, m = 1 gram M = 4 g number of moles = m/M = 1/4 mole ΔT = T2 - T1 Cv = (3/2)R ΔQ = nCvΔT ΔQ =... View Article

According to kinetic theory of gasses at absolute zero temperature (A) water freezes (B) liquid helium freezes (C) molecular motion stops (D) liquid hydrogen freezes

Molecular motion stops According to the kinetic theory of gases molecules, the average kinetic energy of gas molecules is directly proportional... View Article

What does 0.9 cm mean? It is the same as ________millimetres. We can also say this is nine-tenths of a cm. Right?

The last statement of the question suggests 0.9 cm is nine-tenth of a centimeter Conversion from cm to mm We know that, 1 cm = 10 mm Hence,... View Article

When phenolphthalein is added to NaOH, the colour of the solution will become ____________ (A) Colourless (B) Red (C) Pink (D) Yellow

Pink When phenolphthalein is added to NaOH, the colour of the solution will become pink Hence, the correct option is (C)... View Article

24 Sep 2021: UPSC Exam Comprehensive News Analysis

Sept 24th, 2021, CNA:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related C. GS 3 Related INTERNAL SECURITY 1. IS sleeper cells... View Article

23 Sep 2021: PIB Summary & Analysis

TABLE OF CONTENTS 1. One-Horned Rhinos 2. Ayushman Bharat PMJAY 3. India-Australia Joint Working Group (JWG) on “Coal and Mines” 4. Government... View Article

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