UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 23rd Jun 2021. Important news and views to boost... View Article
Rajya Sabha TV programs and discussions are very insightful and informative from a UPSC perspective. In this article, we provide a gist of the... View Article
CNA 23rd June 2021:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related INTERNATIONAL RELATIONS 1. Afghan violence has risen:... View Article
Rajya Sabha TV programs and discussions are very insightful and informative from a UPSC perspective. In this article, we provide a gist of the... View Article
Accelerated charges radiate electromagnetic waves. An oscillating charge is an example of an accelerating charge. For example, consider a charge... View Article
Correct option: (a) scalar Mass is a scalar quantity. The mass of a body is a scalar quantity. The mass has only magnitude, not direction. If we... View Article
(a) Second(b) Parsec(c) Year(d) Light yearAmong the given, both Parsec and Light year are not the units of time. They are practical units which... View Article
When travelling obliquely from one medium to another, the direction of propagation of light in the second medium changes. This phenomenon is... View Article
(A) (1/3)mv2 (B) (1/2)mv2 (C) (1/2m)v2 (D) (1/2)mv Correct option: (B) (1/2)mv2 The expression for kinetic energy is (1/2)mv2. Here, m = Mass of... View Article
(a) 1/8 (b) 2/3 (c) 1/6 (d) 1/9 Correct option: (d) 1/9 Given t = 100 T, a = a0/3 Let a' be the amplitude after completing 200 oscillations, i.e.... View Article
(a) Binocular lens(b) Plano concave lens(c) Concave convex lens(d) Convex lensCorrect option: (d) Convex lensThe type of lens used in a simple... View Article
Electron volt (eV) and Joules are the units of energy in two different systems. However, 1 electron volt is equal to 1.602 × 10-19 Joules,... View Article
Given,Power of lens (P) = +5DAs we know, the power of the lens is the reciprocal of its focal length.So, P = 1/ff = 1/P= 1/5= 0.2 m= 0.2 ×... View Article
(a) geographic south(b) geographic north(c) geographic east(d) geographic westCorrect option: (a) geographic southThe north pole of a magnet... View Article
