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Consider the following statement A and B...

Consider the following statement A and B and identify the correct answer
A) Radio waves diffract around buildings but light waves does not
B) To cut down glare of incident light we prefer sun glasses made from polaroids

A

A is false but B is true

B

A is true but B is false

C

Both A and B are true

D

Both A and B are false

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both statements A and B to determine their correctness. ### Step-by-Step Solution: 1. **Analyze Statement A:** - Statement A claims that "Radio waves diffract around buildings but light waves do not." - **Understanding Diffraction:** - Diffraction is the bending of waves around obstacles and openings. The extent of diffraction depends on the wavelength of the wave relative to the size of the obstacle. - Radio waves have much longer wavelengths (on the order of meters) compared to light waves (which have wavelengths on the order of nanometers). - **Conclusion for Statement A:** - Since the wavelength of radio waves is comparable to the size of buildings, they can diffract around them. In contrast, the wavelength of light is not comparable to the size of buildings, so light waves do not exhibit significant diffraction around such obstacles. - Therefore, Statement A is **true**. 2. **Analyze Statement B:** - Statement B states that "To cut down glare of incident light we prefer sunglasses made from polaroids." - **Understanding Polarization:** - Polarized sunglasses are designed to reduce glare from surfaces like water or roads. They work by blocking certain orientations of light waves, which are typically the ones that cause glare. - Polarizers allow only light waves vibrating in a specific direction to pass through, thus reducing the intensity of reflected glare. - **Conclusion for Statement B:** - Since polarized sunglasses effectively reduce glare from incident light, Statement B is also **true**. 3. **Final Conclusion:** - Both statements A and B are true. Therefore, the correct answer is that both A and B are correct. ### Summary of the Solution: - Statement A: True (Radio waves diffract around buildings; light waves do not). - Statement B: True (Polarized sunglasses cut down glare from incident light). - Final Answer: Both A and B are true.
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