Which organization recently launched the 'Gaganyaan' mission's first test flight (TV-D1)?

What is the phenomenon where a light ray bends as it passes from one medium to another?

In March 2026, copper distribution news highlighted which country as the largest global producer, accounting for nearly 25% of output?

With reference to 'Visible Light Communication' (VLC) technology, which of the following statements is/are correct? 1. VLC uses electromagnetic spectrum wavelengths between 375 and 780 nm. 2. VLC is known as Li-Fi (Light Fidelity). 3. VLC cannot pass through opaque objects. Select the correct answer:

Which country successfully flight-tested the 'Ghauri-II' medium-range ballistic missile in March 2026?

Who invented the light bulb?

Which vitamin is synthesized by the human body in the presence of sunlight?

Which mirror is used in headlights of cars?

In March 2026, which country successfully tested 'Project Icarus', a solar-shield satellite designed to reflect sunlight and lower ocean temperatures?

What is the phenomenon of light bending when it passes from one medium to another called?

What is the scientific name for the 'Bending of Light' as it passes from one medium to another?

Which hormone is responsible for 'Fight or Flight' response in the human body?

Which vitamin is primarily obtained from sunlight?

The 'Vanjeevi Didi' initiative, highlighted in March 2026 news, was launched in which Tiger Reserve to empower local women in forest conservation?

In April 2026, which country became the first to implement a 'Carbon-Neutral Airspace' by mandating 100% Sustainable Aviation Fuel (SAF) for all domestic flights?

In April 2026, which Indian organization successfully conducted the first high-altitude flight test of the 'Tapas-BH-201' Medium Altitude Long Endurance (MALE) UAV?

The phenomenon of 'Total Internal Reflection' (TIR) occurs when light travels from:

Which of the following is a primary color in 'Additive Color Mixing' (light)?

Which mirror is used in the headlights of cars to get a parallel beam of light?

Which Indian scientist won the Nobel Prize in Physics for his work on the scattering of light?