The speed of electromagnetic waves is the same
1) for all wavelengths 2) in all media 3) for all intensities 4) for all frequencies Answer: 3) for all intensities... View Article
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If the relative permeability and dielectric constant of a given medium are equal to lr and K respectively, then the refractive index of the medium is equal to _____________
1) √IrK 2) √IrE0 3) √I0E0 4) 1/√IrK Answer: 1) √IrK Solution: Refractive index, n = c/v = √IrK
A plane electromagnetic wave is incident on a material surface. The wave delivers momentum P and energy E
1) P = 0, E ≠ 0 2) P ≠ 0, E = 0 3) P ≠ 0, E ≠ 0 4) P = 0, E... View Article
If c is the speed of electromagnetic waves in vacuum, its speed v in a medium of dielectric constant K and relative permeability μr is
1) v = 1/√μrK 2) v = c √μrK 3) v = c/√μrK 4) v = k √μrc Answer: v = c √μrK Solution:... View Article
The electric field ( in NC-1) in an electromagnetic wave is given by E = 50 sin ω (t-x/c) The energy stored in a cylinder of cross-section 10 cm2 and length 100 cm along the x-axis will be
1) 5.5 x 10-12 J 2) 1.1 x 10-11 J 3) 2.2 x 10-11 J 4) 1.65 x 10-11 J... View Article
An electromagnetic wave is propagating along x-axis. At x = 1cm and t =10 s, its electric vector |E| = 6 V/m, then the magnitude of its magnetic vector is
1) 2 × 10-8 2) 3 × 10-7 3) 6 × 10-8 4) 5 × 10-7 Answer: 1) 2 × 10-8... View Article
AIR Spotlight – India’s Roadmap at the UN Climate Change Conference in Glasgow
AIR Spotlight is an insightful program featured daily on the All India Radio Newsonair. In this program, many eminent panellists... View Article
Special Frontier Force – Vikas Battalion
The Special Frontier Force (SFF) is a paramilitary special force of India created on 14 November 1962. SFF is known... View Article
05 Nov 2021: UPSC Exam Comprehensive News Analysis
There is no CNA today since there is no edition of ‘The Hindu’ newspaper.
04 Nov 2021: PIB Summary & Analysis
There are no important articles in today’s PIB.
04 Nov 2021: The Hindu Analysis
There is no edition of ‘The Hindu’ video analysis today on account of Diwali Holiday!
03 Nov 2021: PIB Summary & Analysis
There is no PIB analysis today on account of Diwali Holiday!
04 Nov 2021: UPSC Exam Comprehensive News Analysis
There is no edition of CNA today on account of Diwali holiday!
03 Nov 2021: The Hindu Analysis
UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 03rd Nov 2021. Important news and... View Article
International Mother Language Day – February 21st
The United Nations Educational, Scientific and Cultural Organization (UNESCO) celebrates International Mother Language Day every year to promote mother tongue-based... View Article
Difference Between IAS and PCS Officer
The Indian Administrative Service (IAS) and the Provincial Civil Service (PCS) are both civil services but one works directly under... View Article
Aravalli Range [Geography & Environment Notes for UPSC]
The Aravalli Range located in the north-western part of India is one of the oldest fold mountain systems in the... View Article
03 Nov 2021: UPSC Exam Comprehensive News Analysis
Nov 3rd, 2021, CNA:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related POLITY AND... View Article
02 Nov 2021: PIB Summary & Analysis
TABLE OF CONTENTS 1. National Ayurveda Day 2021 2. Indian Renewable Energy Development Agency (IREDA) 3. National Sports Awards 2021... View Article
What causes Ekman transport?
Ekman transport is caused by ocean surface waters being affected by friction via the wind. As the wind blows it... View Article
