Answer: The Earth's layer, which has the covering and layer, is made of a progression of things, or structural plates, that creep after some time. Along these lines, at intersecting limits, mainland outside is made and maritime covering is devastated. 2 plates slippy past each other structures a redesign plate limit.
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Answer:
2nd no. positive.... 3rd no. negitive......
Answer:
Gastric juice is an acidic substance ( Strongly acidic)
Explanation:
According to the table shown in the question:
- Gastric juice turns blue litmus paper to red
- It is neutral to red litmus
Note: Any substance that turns blue litmus paper red and is neutral to red litmus paper is an acidic substance.
Moreover, gastric juice is a combination of Pepsin and HCl and it has a PH that varies between 1 and 3. This PH is typical of a strongly acidic substance.
Answer:
There are 2.71x10⁴ wavelengths between the source and the screen.
Explanation:
The number of wavelengths (N) can be calculated as follows:
Where:
: is the distance in glass = 2.25 mm
: is the distance in air = 1.50 cm - 0.225 cm = 1.275 cm
: is the wavelength in glass
: is the wavelength in air = 620 nm
To find the wavelength in glass we need to use the following equation:
Where:
: is the refraction index of glass = 1.80
: is the refraction index of air = 1
Hence, the number of wavelengths is:
Therefore, there are 2.71x10⁴ wavelengths between the source and the screen.
I hope it helps you!
