Minds Of Aspirants (Official)
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The prime aim of this channel is to share the collective intelligence and experience of aspirants via this platform. Link for our youtube channel - https://youtube.com/channel/UCZnY9iGy0G1zCwQFlqrFhlQ 7305605638 @moa_official
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Підписники
-124 години
+77 днів
-1030 день
Архів дописів
Repost from Minds Of Aspirants (Official)
Green bonds - please note this question down for prelims - this is a highly probable question
What is green bond and what are its features?
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#gs3
#internalsecurity
What are the various usage of drones?
What is the work of BSF?
Which border does BSF protect ?
Can you draw a map of protection of BSF?
Repost from Minds Of Aspirants (Official)
+2
#MOA_Gazette
#Prelims 2023
1.Liberalised drone rules 2021
2.Where is Indias first drone station?
3. What is SVAMITVA scheme?
#Mains 2023
(GS 3) Application of technology in the governance process
e-technology aiding agriculture
Can drone pilots can address employment issues in the future?
Repost from Minds Of Aspirants (Official)
Prelims'26
Mains'25
Akashteer air defence control system
Bhargavastra
DRDO's anti drone system
Indrajaal
Repost from Minds Of Aspirants (Official)
✅ Electromagnetic Waves Used in Common Technologies
Bluetooth
• Uses Microwaves (2.4 GHz)
• Short-range wireless communication.
TV Remote
• Uses Infrared (IR) waves
• Line-of-sight control.
Communication Satellites
• Use Microwaves (C-band, Ku-band, Ka-band)
• Least atmospheric absorption → clear long-distance communication.
James Webb Space Telescope (JWST)
• Uses Infrared (IR) for observation
• Sees through dust clouds; detects early universe.
Drones
• Controlled using Radio waves / Microwaves (2.4–5.8 GHz)
• Reliable high-bandwidth control signals.
WiFi
• Uses Microwaves (2.4 GHz & 5 GHz)
• Wireless internet transmission.
MRI Scan
• Uses Radio waves (RF waves) + Magnetic field
• Radio waves excite hydrogen nuclei → imaging.
LASER
• Uses Coherent light (Visible or Infrared)
• Highly focused → cutting, medical, defence, measurement.
Remote Sensing Satellites
• Use Visible light, Infrared, Microwave
Visible → land use, vegetation
IR → heat, moisture
Microwave → cloud-penetration, all-weather data
Optical Fibres
• Use Infrared light (850, 1310, 1550 nm)
• Lowest signal loss → high-speed internet.
Radar
• Uses Microwaves (1–10 GHz)
• Aircraft tracking, weather radar, speed guns.
LiDAR
• Uses Laser pulses (Near-IR)
• 3D mapping, elevation survey, autonomous vehicles.
Night Vision Devices
• Use Infrared (Near-IR / Thermal IR)
• Detects heat OR uses IR illumination in darkness.
Repost from Minds Of Aspirants (Official)
#prelims2022
What are the rare earth metals used in electronic goods
Repost from Minds Of Aspirants (Official)
A good article explaining how rare earth elements are useful in each industry and what is the issue
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90% global lithium concentrated
Chile
Argentina
Bolivia
Australia
China
Cobalt and nickel - Congo and indonesia
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China restricted exports
Samarium
Gadolinium
Terbium
Dysprosium
Lutetium
Scandium
Yttrium
Gallium
Germanium
Antimony
Repost from Minds Of Aspirants (Official)
Mains'25
Gs2
Ban on rare earth magnets export by china
Mains candidates to note this down
"Neodymium iron boron" magnets
Electrict motors
Power steering
Wiper motors
Repost from Minds Of Aspirants (Official)
+2
India - Australia
China dominance
Rare earth elements ban
Clean energy
Gs 2
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