Answer:
Part a)
Width of the slit is

Part b)
Ratio of intensity is given as

Explanation:
Part a)
As we know by the formula of diffraction we will have

so we have


so we will have


Part b)
As we know that the intensity in diffraction pattern is given as


so for angle 45 degree



The answer is A, ionic bonds. Hope this helped you
C. Greenhouse gases contribute to climate change
Explanation:
It is desirable to use an energy source that does not produce greenhouse gases because these gases contributes a whole lot to climate change.
Over the years, studies have shown that the primary use of fossil fuels have significant lead to changes in the climate.
- Greenhouse gases are produced during the combustion of fossil fuels.
- The most important gas produced in this process is the carbon dioxide.
- The greenhouse gases prevents long range radiation from leaving the earth.
- They waves interacts with the gases and warms the earth surface.
- Anomalous concentration of the gases causes more warming of the earth surface.
- This leads to a change in climate.
Learn more:
Greenhouse gases brainly.com/question/4580761
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<span>The polarity of a water molecule
comes from the uneven distribution of electron density of hydrogen and oxygen
atom. The oxygen in the water molecule is more electronegative than the
hydrogen. Water has a <u>partial positive charge near the hydrogen atom and a
partial negative charge near the oxygen atom</u>. The result of this
electrostatic attraction results in the bond called hydrogen bond. Also, because
of this bond, it has the ability to dissolve most of the solutes due to its
polarity and bonding.</span>
1. A lamp can transfer energy through light and thermal energy, fire, and a radiator.
2. A tuning fork can transfer sound energy/vibration throughout a medium, speaker, and a piano.
3. A heart works by electrical energy produced from chemical energy within the body, computer, and a phone.