What type of mirror is used in car headlights?

Concave

convex

Both (a) & (b)

None of the above

Correct Answer : Concave

Concave type of glasses are used in the headlights of the vehicles as the light from the bulb which is at focus will converges out and spreads and reflects back parallely.

Published On : June 14, 2021

Recent Updates in Science and Technology - General Knowledge Questions

Q .

What is the temperature that NASA's Parker Solar Probe withstood while flying closer to the Sun?

800�C

982�C

1050�C

1200�C

Correct Answer : 982�C

* NASA's Parker Solar Probe set a historic record by flying closer to the Sun than any other man-made object, withstanding temperatures up to 982°C.

* This is a remarkable achievement, demonstrating the probe's advanced heat shield technology.

* The Parker Solar Probe's mission aims to explore the Sun's corona, investigate solar winds, and understand the Sun's energy flow.

Published On : December 29, 2024

Category : Science and Technology

Q .

Which country is advancing its quantum communications experiments and plans to launch a quantum satellite?

China

Russia

India

United States

Correct Answer : India

* India is making significant strides in the field of quantum communications through its National Quantum Mission (NQM).

* As part of this mission, India aims to launch a quantum satellite in the next 2-3 years, which will use quantum physics to secure communication signals, making them resistant to interception.

* This initiative will position India at the forefront of next-generation technology in secure communication.

* Quantum Key Distribution (QKD), an essential component of this satellite, ensures "unconditional security" by detecting any eavesdropping attempts.

* India’s advancements in quantum research are paving the way for the future of secure global communication.

Published On : December 26, 2024

Category : Science and Technology

Q .

What is the primary focus of the TTDF-funded project awarded to Amantya Technologies?

AI-driven IoT devices

Telecom infrastructure

Advanced semiconductor design

Satellite communication systems

Correct Answer : Telecom infrastructure

* The TTDF-funded project awarded to Amantya Technologies focuses on developing a carrier-grade 5G SA Core compliant with 3GPP Release 16/17 standards.

* It supports features like network slicing, Quality of Service (QoS), Voice over New Radio (VoNR), and massive Machine-Type Communication (mMTC).

* This initiative is part of the Atmanirbhar Bharat mission to enhance India's telecom infrastructure and foster self-reliance in cutting-edge technologies.