CNA 27th July 2021:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related POLITY AND... View Article
July 26th, 2021, PIB:- Download PDF Here TABLE OF CONTENTS 1. Kargil Vijay Diwas 2. Ethanol Blended Petrol (EBP) Programme... View Article
Economy is an important part of the UPSC prelims and mains exams; this series titled ‘Economy This Week’ has been initiated to... View Article
UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 26th Jul 2021. Important news and... View Article
a. \(\begin{array}{l}A\sqrt{\frac{M}{M+m}}\end{array} \) b. \(\begin{array}{l}A\sqrt{\frac{M}{M-m}}\end{array} \) c. \(\begin{array}{l}A\sqrt{\frac{M-m}{M}}\end{array} \) d. \(\begin{array}{l}A\sqrt{\frac{M+m}{M}}\end{array} \) Answer: (a) We know that ωf = \(\begin{array}{l}\sqrt{\frac{k}{M-m}}\end{array}... View Article
a. 7 b. 0.875 c. 0.5 d. 3.5 Answer: (1) Given: ΔIE = 4 mA ΔIC = 3.5 mA We... View Article
a. [M0LT0] b. [M2LT2] c. [MLT–2] d. [ML2T–2] Answer: (c) Given: work done = \(\begin{array}{l}\alpha \cdot \beta ^{2}\cdot e^{-\frac{x^{2}}{\alpha .KT}}\end{array}... View Article
I1 = M.I. of thin circular ring about its diameter, I2 = M.I. of circular disc about an axis perpendicular... View Article
a. f = r b. f = – ½ r c. f = +½ r d. f = – r... View Article
a. The series limit of Lyman series, third member of Balmer series and second member of Paschen series b. The... View Article
a. 2100 C b. 260 C c. 2250 C d. 11250 C Answer: (d) Given: i = α0t + βt2... View Article
Statement-I: Two photons having equal linear momenta have equal wavelengths. Statement-II: If the wavelength of a photon is decreased, then... View Article
Answer: (a) a= dv / d t= slope of (v – t) curve If m = +ve, then equation of... View Article
a. \(\begin{array}{l}2\pi = \sqrt{\frac{d^{3}}{3Gm}}\end{array} \) b. \(\begin{array}{l}\frac{1}{2\pi} = \sqrt{\frac{3Gm}{d^{3}}}\end{array} \) c. \(\begin{array}{l}\frac{1}{2\pi} = \sqrt{\frac{d^{3}}{3Gm}}\end{array} \) d. \(\begin{array}{l}2\pi = \sqrt{\frac{3Gm}{d^{3}}}\end{array} \)... View Article
a. \(\begin{array}{l}k = \frac{Y\eta }{9\eta -3Y} N/m^{2}\end{array} \) b. \(\begin{array}{l}\eta = \frac{3YK}{9K + Y} N/m^{2}\end{array} \) c. \(\begin{array}{l}Y = \frac{9K\eta}{3K... View Article
a. 2: 1 b. 1: 4 c. 4: 1 d. 1: 2 Answer: (b) Given that first connection Second connection... View Article
A→ B: Isothermal expansion at temperature T so that the volume is doubled from V1 to V2 and pressure changes... View Article