1.
What was the radius of total destruction (during the Hiroshima bombing)?
Correct Answer
B. 1 mile
Explanation
The radius of total destruction during the Hiroshima bombing was 1 mile. This means that everything within a 1-mile radius of the bomb's epicenter was completely destroyed. This includes buildings, infrastructure, and anything else in the blast zone. The immense power and impact of the bomb caused widespread devastation and loss of life within this radius.
2.
How high above the ground did the 'Little Boy' explode?
Correct Answer
C. 1900 feet
Explanation
The 'Little Boy' exploded at a height of 1900 feet above the ground.
3.
For beta particle emission to occur, the number of protons must be ______ than the number of neutrons.
Correct Answer
B. Lower
Explanation
Beta particle emission occurs when a neutron in the nucleus of an atom is converted into a proton and an electron. The electron is then emitted from the nucleus as a beta particle. This process reduces the number of neutrons in the nucleus and increases the number of protons. Therefore, for beta particle emission to occur, the number of protons must be lower than the number of neutrons.
4.
Which type of radiation has the highest penetrating power?
Correct Answer
A. Gamma rays
Explanation
Gamma rays have the highest penetrating power among the given options. This is because gamma rays are high-energy electromagnetic waves that can easily pass through most materials due to their short wavelength and high frequency. On the other hand, alpha and beta particles are subatomic particles that have mass and charge, making them less penetrating compared to gamma rays.
5.
How many types of radiation have you learnt about?
Correct Answer
A. 3
Explanation
The correct answer is 3 because the question asks how many types of radiation the person has learned about. Since the person has learned about 3 types of radiation, the answer is 3.
6.
How does hair loss occur?
Correct Answer
C. The hair becomes thinner before breaking off
Explanation
Hair loss occurs when the hair becomes thinner before breaking off. This means that the individual hair strands gradually become weaker and thinner over time, leading to eventual hair loss. It is a common pattern in various types of hair loss, such as androgenetic alopecia (male or female pattern baldness), where the hair follicles shrink and produce thinner hair strands until they eventually stop producing new hair altogether.
7.
Can the hair regrow?
Correct Answer
B. Yes
Explanation
There will be some root hair stem cells that survive in the epithelial layer, which can regenerate the hair matrix.
8.
How are radiation-induced cataracts formed?
Correct Answer
C. The cells in the eye are damaged.
Explanation
Radiation-induced cataracts are formed when the cells in the eye are damaged. Exposure to radiation can cause changes in the structure and function of these cells, leading to the development of cataracts. This damage can disrupt the normal functioning of the lens, causing it to become cloudy and impairing vision.
9.
Which of the following has been proven to be an effect of radiation exposure?
Correct Answer
C. The development of cancer.
Explanation
Exposure to radiation has been proven to cause the development of cancer. Radiation can damage the DNA in cells, leading to mutations that can result in uncontrolled cell growth and the formation of tumors. This is a well-documented effect of radiation exposure and has been observed in numerous studies and cases of individuals exposed to high levels of radiation, such as survivors of atomic bombings or nuclear accidents.
10.
What is the name of the plane that dropped the atomic bomb?
Correct Answer
C. Enola Gay
Explanation
Enola Gay is the correct answer because it was the name of the plane that dropped the atomic bomb on the Japanese city of Hiroshima on August 6, 1945. The Enola Gay was a Boeing B-29 Superfortress bomber, specifically modified for this mission. It was piloted by Colonel Paul Tibbets and played a significant role in the history of World War II.