![A sound wave of wave length 40 em travels in air. If the difference between the maximum and minimum pressures at a given point is 2.0 × 10^-3 N/m^2 . The amplitude A sound wave of wave length 40 em travels in air. If the difference between the maximum and minimum pressures at a given point is 2.0 × 10^-3 N/m^2 . The amplitude](https://dwes9vv9u0550.cloudfront.net/images/3260620/5e132f18-21bf-44f4-a3a4-e39560ee9a73.jpg)
A sound wave of wave length 40 em travels in air. If the difference between the maximum and minimum pressures at a given point is 2.0 × 10^-3 N/m^2 . The amplitude
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![T Madas. 1 m = cm cm = mm 10 1 km = m m = cm cm = mm 40 3 km = m m = cm cm = mm km = m cm = m ppt download T Madas. 1 m = cm cm = mm 10 1 km = m m = cm cm = mm 40 3 km = m m = cm cm = mm km = m cm = m ppt download](https://images.slideplayer.com/31/9625092/slides/slide_2.jpg)
T Madas. 1 m = cm cm = mm 10 1 km = m m = cm cm = mm 40 3 km = m m = cm cm = mm km = m cm = m ppt download
![A uniform meter scale balances at the 40 cm mark when weights of 10 g and 20 g are suspended from the 10 cm and 20 cm marks. The weight of the metre scale is A uniform meter scale balances at the 40 cm mark when weights of 10 g and 20 g are suspended from the 10 cm and 20 cm marks. The weight of the metre scale is](https://dwes9vv9u0550.cloudfront.net/images/8665810/786bb5b9-05bf-4a8a-81a3-6c9cfad53d5a.jpg)
A uniform meter scale balances at the 40 cm mark when weights of 10 g and 20 g are suspended from the 10 cm and 20 cm marks. The weight of the metre scale is
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![T Madas. 1 m = cm cm = mm 10 1 km = m m = cm cm = mm 40 3 km = m m = cm cm = mm km = m cm = m ppt download T Madas. 1 m = cm cm = mm 10 1 km = m m = cm cm = mm 40 3 km = m m = cm cm = mm km = m cm = m ppt download](https://images.slideplayer.com/31/9625092/slides/slide_3.jpg)