The frequency of AC mains in India is 50 Hz. The time period is MCQ with Answer and Explanation

Explanation:
Curie point: ferromagnetic to paramagnetic transition.

Explanation:
Area under v-t graph gives displacement (distance if velocity doesn't change sign). Slope of x-t gives velocity. Slope of v-t gives acceleration. Area a-t gives change in velocity.

Explanation:
Gamma rays have wavelengths < 10⁻¹² m, shortest in EM spectrum. X-rays 10⁻¹⁰-10⁻⁸ m. UV 10⁻⁸-4×10⁻⁷ m. IR longer. So gamma rays shortest. Highest frequency, energy.