Tag: science & technology

The Indian Air Force completed the user trials for the Akash missile system in December 2007. Akash is a medium-range surface-to-air missile developed by DRDO. The trials were conducted to validate the missile's operational readiness before induction into the IAF.

Surya is the reported codename for India's first ICBM development program. It's an intercontinental ballistic missile project that India is said to be developing as part of its strategic missile capability. The name Surya follows India's convention of naming missiles after celestial bodies and mythological figures.

Nag is India's third-generation anti-tank guided missile. The 45th test firing on March 19, 2005 was conducted at the Army's Proof & Experimental Establishment (PXE) located in Ahmednagar, Maharashtra. This facility is used for testing various weapons systems.

Nag is India's third-generation 'fire-and-forget' anti-tank guided missile. It uses top-attack capability to defeat enemy tanks and can be launched from various platforms including helicopters and land-based vehicles. The other options are not the correct missile name.

The Trishul missile system was developed as a quick-reaction surface-to-air missile specifically for defending naval vessels against incoming anti-ship missiles. While India has land-based short-range SAMs, Trishul was primarily designed for naval point defense. Option A correctly identifies this primary purpose.

Astigmatism results from an irregularly shaped cornea (or sometimes lens) that refracts light unevenly, causing blurred or distorted vision at all distances. The cornea's surface should be spherical like a basketball, but in astigmatism it's more football-shaped.

Wernicke's area, located in the temporal lobe (usually left), is essential for language comprehension. Damage causes receptive aphasia - patients can speak fluently but produce nonsensical words and cannot understand spoken or written language. Broca's area handles speech production instead.

Visceral muscle is the correct anatomical term for smooth muscle - found in hollow organs (stomach, intestines, blood vessels, uterus). It's involuntary, non-striated, and controlled by the autonomic nervous system. Cardiac muscle is only in the heart, and skeletal muscle moves bones.

The brain is the central processing organ of the nervous system, receiving sensory input, coordinating responses, and enabling cognition. The circulatory system moves blood, respiratory handles gas exchange, and excretory removes waste. The brain contains neurons and glial cells that transmit electrical signals.