173124 In resonance tube of length $0.8 \mathrm{~m}$, air column vibrates with a source of frequency $375 \mathrm{~Hz}$ for a certain height of water from bottom of the tube. Water level corresponding to fundamental frequency is
(Neglect end correction, speed of sound in air = $330 \mathrm{~m} / \mathrm{s}$ )

173118 Assertion (A): Microwave oven heats a food item containing water molecules most efficiently.
Reason (R): Resonant frequency of water molecules matches the frequency of micro waves generated by microwave oven.

173126 A resonance tube completely filled with water has small hole at the bottom. Length of the tube is $0.8 \mathrm{~m}$. A vibrating tuning fork of frequency $500 \mathrm{~Hz}$ is held near the open end of tube. Water is slowly removed from the bottom. The maximum number of resonances heard will be (Neglect end correction. Speed of sound in air = $340 \mathrm{~m} / \mathrm{s}$ )

173129 A tuning fork with frequency $800 \mathrm{~Hz}$ produces resonance in a resonance column tube with upper end open and lower end closed by water surface. Successive resonance are observed at length $9.75 \mathrm{~cm}, 31.25 \mathrm{~cm}$ and $52.75 \mathrm{~cm}$. The speed of sound in air is

173124 In resonance tube of length $0.8 \mathrm{~m}$, air column vibrates with a source of frequency $375 \mathrm{~Hz}$ for a certain height of water from bottom of the tube. Water level corresponding to fundamental frequency is
(Neglect end correction, speed of sound in air = $330 \mathrm{~m} / \mathrm{s}$ )

173118 Assertion (A): Microwave oven heats a food item containing water molecules most efficiently.
Reason (R): Resonant frequency of water molecules matches the frequency of micro waves generated by microwave oven.

173126 A resonance tube completely filled with water has small hole at the bottom. Length of the tube is $0.8 \mathrm{~m}$. A vibrating tuning fork of frequency $500 \mathrm{~Hz}$ is held near the open end of tube. Water is slowly removed from the bottom. The maximum number of resonances heard will be (Neglect end correction. Speed of sound in air = $340 \mathrm{~m} / \mathrm{s}$ )

173129 A tuning fork with frequency $800 \mathrm{~Hz}$ produces resonance in a resonance column tube with upper end open and lower end closed by water surface. Successive resonance are observed at length $9.75 \mathrm{~cm}, 31.25 \mathrm{~cm}$ and $52.75 \mathrm{~cm}$. The speed of sound in air is

173124 In resonance tube of length $0.8 \mathrm{~m}$, air column vibrates with a source of frequency $375 \mathrm{~Hz}$ for a certain height of water from bottom of the tube. Water level corresponding to fundamental frequency is
(Neglect end correction, speed of sound in air = $330 \mathrm{~m} / \mathrm{s}$ )

173118 Assertion (A): Microwave oven heats a food item containing water molecules most efficiently.
Reason (R): Resonant frequency of water molecules matches the frequency of micro waves generated by microwave oven.

173126 A resonance tube completely filled with water has small hole at the bottom. Length of the tube is $0.8 \mathrm{~m}$. A vibrating tuning fork of frequency $500 \mathrm{~Hz}$ is held near the open end of tube. Water is slowly removed from the bottom. The maximum number of resonances heard will be (Neglect end correction. Speed of sound in air = $340 \mathrm{~m} / \mathrm{s}$ )

173129 A tuning fork with frequency $800 \mathrm{~Hz}$ produces resonance in a resonance column tube with upper end open and lower end closed by water surface. Successive resonance are observed at length $9.75 \mathrm{~cm}, 31.25 \mathrm{~cm}$ and $52.75 \mathrm{~cm}$. The speed of sound in air is

173124 In resonance tube of length $0.8 \mathrm{~m}$, air column vibrates with a source of frequency $375 \mathrm{~Hz}$ for a certain height of water from bottom of the tube. Water level corresponding to fundamental frequency is
(Neglect end correction, speed of sound in air = $330 \mathrm{~m} / \mathrm{s}$ )

173118 Assertion (A): Microwave oven heats a food item containing water molecules most efficiently.
Reason (R): Resonant frequency of water molecules matches the frequency of micro waves generated by microwave oven.

173126 A resonance tube completely filled with water has small hole at the bottom. Length of the tube is $0.8 \mathrm{~m}$. A vibrating tuning fork of frequency $500 \mathrm{~Hz}$ is held near the open end of tube. Water is slowly removed from the bottom. The maximum number of resonances heard will be (Neglect end correction. Speed of sound in air = $340 \mathrm{~m} / \mathrm{s}$ )

173129 A tuning fork with frequency $800 \mathrm{~Hz}$ produces resonance in a resonance column tube with upper end open and lower end closed by water surface. Successive resonance are observed at length $9.75 \mathrm{~cm}, 31.25 \mathrm{~cm}$ and $52.75 \mathrm{~cm}$. The speed of sound in air is