All categories

3 years ago

When ionizing radiation strike atoms or molecules in their paths they cause _____

Physics

1 answer:

Brrunno [24]3 years ago

7 0

Answer:

C) ions or free radicals, highly reactive species that can cause undesirable effects in living tissue.

Explanation:

Ionizing radiation is a type of energy released by atoms in the form of electromagnetic waves or particles

When a cell absorbs radiation, there are four possible effects on the cell.

• The cell may suffer enough damage to cause loss of proper function, and the cell will die.

• The cell may lose its ability to reproduce itself.

• The cell’s genetic code (i.e., the DNA) may be damaged such that future copies of the cell are altered, which may result in cancerous growth.

• The absorption of radiation by a cell may have no adverse effects.

The detrimental effects of ionizing radiation (IR) involve a highly orchestrated series of events that are amplified by endogenous signaling and culminating in oxidative damage to DNA, lipids, proteins, and many metabolites. Despite the global impact of IR, the molecular mechanisms underlying tissue damage reveal that many bio molecules are chemo selectively modified by IR

Hence the correct answer is C.

You might be interested in

Monochromatic light is incident on a pair of slits that are separated by 0.220 mm. The screen is 2.60 m away from the slits. (As

Naddik [55]

Answer:

$\lambda = 1.667 nm$

$\theta = 0.8681^o$

Explanation:

From the question we are told that

The distance of separation is $d = 0.220 \ mm = 0.00022 \ m$

The is distance of the screen from the slit is $D = 2.60 \ m$

The distance between the central bright fringe and either of the adjacent bright $y = 1.97 cm = 1.97 *10^{-2}\ m$

Generally the condition for constructive interference is

$d sin \tha(\theta ) = n \lambda$

From the question we are told that small-angle approximation is valid here.

So $sin (\theta ) = \theta$

=> $d \theta = n \lambda$

=> $\theta = \frac{n * \lambda }{d }$

Here n is the order of maxima and the value is n = 1 because we are considering the central bright fringe and either of the adjacent bright fringes

Generally the distance between the central bright fringe and either of the adjacent bright is mathematically represented as

$y = D * sin (\theta )$

From the question we are told that small-angle approximation is valid here.

$y = D * \theta$

=> $\theta = \frac{ y}{D}$

$\frac{n * \lambda }{d } = \frac{y}{D}$

$\lambda =\frac{d * y }{n * D}$

substituting values

$\lambda = \frac{0.00022 * 1.97*10^{-2} }{1 * 2.60 }$

$\lambda = 1.667 *10^{-6}$

$\lambda = 1.667 nm$

In the b part of the question we are considering the next set of bright fringe so n= 2

Hence

$dsin (\theta ) = n \lambda$

$\theta = sin^{-1}[\frac{ n * \lambda }{d} ]$

$\theta = sin^{-1}[\frac{ 2 * 1667 *10^{-9}}{ 0.00022} ]$

$\theta = 0.8681^o$

7 0

4 years ago

A backyard swimming pool holds 165 cubic yards (yd3) of water. what is the weight of the water in pounds?

asambeis [7]

12344

yu j fjfjf hfjfuf jfjjfjfi jfjfifjf fjfikf

8 0

3 years ago

An empty elevator has a mass of 722 kg. It moves between floors at a maximum speed of 6.00 m/s. The elevator is stopped on the 2

FinnZ [79.3K]

Answer:

Explanation:

The lift is going down with acceleration

Initial speed u = 0

Final speed v = 6 m/s

distance s = 15.25 m

acceleration a = ?

v² = u² + 2 a s

6² = 0 + 2 x a x 15.25

a = 1.18 m /s²

Elevator is going down with acceleration .

mg - T = ma where T is tension in the cable .

722 x 9.8 - T = 722 x 1.18

7075.6 - T = 851.96

T = 6223.64 N .

7 0

3 years ago

The directional wave patterns or illusion of motion in the hair are known as the:________

disa [49]

The answer is Design texture.

Hair with directional wave patterns or motion illusions. When designing a style, design texture must be considered. Curly hair reflects less light and has a greater shape than straight or wavy hair.

What is Design texture?

Texture is a design feature that delineates the surfaces of shapes and forms.
Tactile texture is texture that you feel with your fingertips, whereas visual texture is texture that an artist recreates on a flat surface.
Because it possesses height, breadth, and depth, tactile texture is three-dimensional.

To learn more about Design texture visit:

brainly.com/question/14832382

#SPJ4

5 0

2 years ago

State the rule that describes how a pulse will behave at a free-end.

RSB [31]

Answer:

Fixed end: inverted

Free end: not inverted

Explanation:

8 0

3 years ago