Question

wilson cloud chamber is used to detect paths of which rays?
a:alpha rays
b:beta rays
c:gamma rays
d:all of these​

Answer 1

Answer:

A cloud chamber, also known as a Wilson cloud chamber, is a particle detector used for visualizing the passage of ionizing radiation.

track of subatomic particle moving upward through cloud chamber and bending left (an electron would have turned right)

Fig. 1: Cloud chamber photograph used to prove the existence of the positron. Observed by C. Anderson.

A cloud chamber consists of a sealed environment containing a supersaturated vapor of water or alcohol. An energetic charged particle (for example, an alpha or beta particle) interacts with the gaseous mixture by knocking electrons off gas molecules via electrostatic forces during collisions, resulting in a trail of ionized gas particles. The resulting ions act as condensation centers around which a mist-like trail of small droplets form if the gas mixture is at the point of condensation. These droplets are visible as a "cloud" track that persists for several seconds while the droplets fall through the vapor. These tracks have characteristic shapes. For example, an alpha particle track is thick and straight, while an electron track is wispy and shows more evidence of deflections by collisions.

Cloud chambers played a prominent role in experimental particle physics from the 1920s to the 1950s, until the advent of the bubble chamber. In particular, the discoveries of the positron in 1932 and the muon in 1936, both by Carl Anderson (awarded a Nobel Prize in Physics in 1936), used cloud chambers. Discovery of the kaon by George Rochester and Clifford Charles Butler in 1947, also was made using a cloud chamber as the detector.[1] In each case, cosmic rays were the source of ionizing radiation.

Explanation:

CORRECT ANSWER IS OPTION D ALL OF THESE

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