Download CBSE Class Physics 12 Pre-Board Sample Papers 2025–26 with solutions for all subjects in free PDF format. These papers are curated by experts as per the latest CBSE syllabus and exam pattern.

I test a series of light experiments to explore reflection, refraction, and optical illusions, demonstrating how light behaves in surprising and educational ways.

Controlling light at dimensions thousands of times smaller than the thickness of a human hair is one of the pillars of modern ...

As the nights grow longer and the world feels a little heavier, I find myself turning toward the familiar rhythm of Hanukkah. The simple act of striking a match, watching the wick catch and letting ...

Radiative cooling technologies scatter heat and light into space, which could cut air-conditioning demand and keep people ...

The basics of photosynthesis are something that every student learns in school: carbon dioxide, water and light in; oxygen ...

The discovery is the first direct observational confirmation of a theory for how young stars feed on, and then explosively ...

Thousands of people have gathered at Bondi Beach to honour the victims of last Sunday's terror attack. Vigils were held around the country, with Australians ...

The museum's exit is hidden behind a shipment container close to the main staircase. The container should be highlighted when using your scanner—open it and lead Myers through the subway tunnels.

I've completely swapped my home over to LED lights, and for the most part, I love it. The energy savings are real, and I'm a sucker for all the smart color changing tes. But my biggest grievance is ...

Overall, 53% of Americans say it is extremely or very important for the U.S. to take an active role in world affairs. Overall, 50% of adults disapprove of the Trump administration’s approach to ...