05 Feb 2022: The Hindu Analysis
UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 05 Feb 2022. Important news and... View Article
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Sansad TV Perspective: Decoding Budget 2022-23
In the series Sansad TV Perspective, we bring you an analysis of the discussion featured on the insightful programme ‘Perspective’... View Article
UPSC 2022: Weekly GK and Current Affairs Quiz Feb 05 – Feb 11
UPSC 2022: Weekly GK and Current Affairs Quiz Feb 05 – Feb 11 with Multiple Choice Questions and answers for... View Article
04 Feb 2022: PIB Summary for UPSC
TABLE OF CONTENTS 1. Swachhta Saarthi Fellowship 2022 2. Rashtriya Yuva Sashaktikaran Karyakram (RYSK) 3. Blue Revolution 4. Towns of... View Article
05 Feb 2022: UPSC Exam Comprehensive News Analysis
CNA 05 Feb 2022:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related INTERNATIONAL RELATIONS... View Article
04 Feb 2022: The Hindu Analysis
UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 04 Feb 2022. Important news and... View Article
04 Feb 2022: UPSC Exam Comprehensive News Analysis
CNA 04 Feb 2022:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related C. GS... View Article
03 Feb 2022: PIB Summary for UPSC
TABLE OF CONTENTS 1. New methods to transform phenol into key essential ingredients 2. Incentives for adoption of renewable energy... View Article
SDG India Index 2020-21
The NITI Aayog released the third edition of the Sustainable Development Goals (SDG) India Index 2020-21. What does the SDG... View Article
The attenuation in optical fibre is mainly due to
1) absorption 2) scattering 3) Neither absorption nor scattering 4) Both (1) and (2) Answer: 4) Both (1) and (2) Solution:... View Article
Antenna is
1) inductive 2) capacitive 3) resistive above its resonant frequency 4) resistive at resonant frequency Answer: 1) inductive Solution: Antenna is inductive
Which of the following four alternatives is not correct?
We need modulation 1) to increase the selectivity 2) to reduce the time lag between transmission and reception of the... View Article
In optical communication system operating at 1200 mm, only 2% of the source frequency is available for TV transmission having a bandwidth of 5 MHz. The number of TV channels that can he transmitted is
1) 2 million 2) 10 million 3) 0.1 million 4) 1 million 5) 0.5 million Answer: 4) 1 million Solution: The... View Article
A diode AM detector with the output circuit consisting of R = 1kΩ and C = 1μF would be more suitable for detecting a carrier signal of
1) 0.1 kHz 2) 0.5 kHz 3) 1 kHz 4) 0.75 kHz 5) 10 kHz Answer: 3) 1 kHz Solution: Here,... View Article
A TV tower has a height 150 m. What is the total population covered by the TV tower, if the population density around the TV tower is 103 km-2? The radius of the earth is 6.4 × 106m.
1) 60.288 lakh 2) 40.192 lakh 3) 100 lakh 4) 20.228 lakh Answer: 1) 60.288 lakh Solution: h=150m,R=6.4×106m Average population density... View Article
The range of frequencies allotted for FM radio is
1) 47 to 230 kHz 2) 47 to 230 MHz 3) 470 to 960 MHz 4) 88 to 108 MHz... View Article
A signal wave of frequency 12 kHz is modulated with a carrier wave of frequency 2.51 MHz. The upper and lower sideband frequencies are respectively
1) 2512 kHz and 2508 kHz 2) 2522 kHz and 2488 kHz 3) 2502 kHz and 2498 kHz 4) 2522... View Article
1000 kHz carrier wave is amplitude modulated by the signal frequency 200 Hz -4000 Hz. The channel width of this case is
1) 8 kHz 2) 4 kHz 3) 7.6 kHz 4) 3.8 kHz 5) 400 kHz Answer: 1) 8 kHz Solution: Bandwidth... View Article
Ozone layer blocks the radiations of wavelength
1) less than 3 × 10-7 m 2) equal to 3 × 10-7 m 3) more than 3 × 10-7... View Article
How many photons are emitted by a laser source of 5 × 10-3 W operating at 632.2 nm in 2s?
1) 3.2 × 1016 2) 1.6 × 1016 3) 4 × 1016 4) None of these Answer: 1) 3.2 × 1016... View Article
