Question 1 :
Greater the heat energy, ________ the body. Fill in the blank.     <br/>
Question 3 :
At what temperature, the Celsius and Fahrenheit scales will read the same ?
Question 4 :
Centigrade (Celsius) scale can be converted into Kelvin scale by formula
Question 6 : The highest temperatures recorded in 4 different countries are listed below<table class="wysiwyg-table"><tbody><tr><td>Highest temperature</td><td>Country</td></tr><tr><td>127.6$^o$F</td><td>India</td></tr><tr><td>114.8$^o$F</td><td>Nepal</td></tr><tr><td>136.4$^o$F</td><td>Srilanka</td></tr><tr><td>134.0$^o$F</td><td>Pakistan</td></tr></tbody></table>What is the highest temperature listed above?
Question 7 :
Of the following instruments, which instruments is most suitable for measuring a temperature of $400^{o}$C?<br/>
Question 8 :
A graph is plotted taking $^\circ C$ along the Y-axis and $^\circ F$ along the X-axis. It is a/an<br>
Question 9 : <span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"></span></span><p class="wysiwyg-text-align-left">The heat change in a chemical reaction at constant volume is given by:</p>
Question 10 :
If the difference of temperature of two bodies is 5$^{o}$C, then the difference of temperature on Kelvin scale is :
Question 13 :
The boiling point of water on celsius scale will be measured as
Question 17 :
When you wrap yourself in blankets during winter or when you touch any hot object, then what kind of energy is felt by you?<br/>
Question 18 :
Select the option which describes the best definition of heat in the context of thermal energy?<br/>
Question 19 :
For measuring temperature near absolute zero, the thermometer used is :<br/>
Question 21 :
The triple point of carbon dioxide is $216.55\,K$ the corresponding temperature on the celsius and Fahrenheit scale respectively are:
Question 22 :
On a hypothetical scale A the ice point is $42^o$ and the steam point is $182^o$ For another scale B, the ice point is $-10^o$ and steam point in $90^o$) If B reads $60^o$, the reading of A is,
Question 23 : Rewrite the following equation in terms of $C$:<div>$\displaystyle F \, = \, \dfrac {9}{5}C\, + \, 32\,$</div>
Question 24 :
Select the correct option given below:<br>Two absolute scale A and B have triple points of water defined to be at $200$ A and $350$ B.The relation between $T_A$ and $T_B$ is
Question 25 :
The temperature of a body on Kelvin scale is found to be $X\ K$. When it is measured by a Fahrenheit thermometer, it is found to be $X^o F$. Then $X$ is
Question 27 :
Two absolute scale A and B have triple points of water defined to be at 200 A an 350 B. The relation between $T _ { A }$ and $T _ { B }$  is
Question 28 :
Assertion: The lowest attainable temperature is absolute zero,i.e.,$0K=-273.15^oC.$
Reason: Size of each degree on Kelvin scale is same as that on Celsius scale.
Question 30 :
The temperature of liquid hydrogen is $20\ K$.What is this temperature on the Fahrenheit scale?
Question 31 :
Ideal gas is contained in a thermally insulated and rigid container and it is heated through a resistance $100\Omega $ by passing a current of $1A$ for five minutes, then change in internal energy of the gas is
Question 33 :
The internal energy $U$ is a unique function of any state because change in $U$.
Question 34 :
Assertion: Fahrenheit is the smallest unit measuring temperature.
Reason: Fahrenheit was the first temperature scale used for measuring temperature.
Question 35 :
Assertion: The internal energy of an isothermal process does not change.
Reason: The internal energy of a system depend only on pressure of the system
Question 36 :
On a $X$ temperature scale, water freezes at $-125.0^o$ X and boils at $375.0^o X$ . On a $Y$ temperature scale water freezes at $-70.0^o Y$ and boils at $-30.0^o Y $ . The value of temperature on $X$ scale equals to the temperature of $50.0^o Y $ on $Y-$ scale is :
Question 39 :
When two sound waves are superimposed, beats are produced when they have
Question 40 :
16 tuning forks are arranged in the order of increasing frequencies. Any two successive forks give 8 beats per sec when sounded together. If the frequency of the last fork is twice the first, then the frequency of the first fork is
Question 41 : The displacement of the interfering sound waves are <img style='object-fit:contain' width=82 height=20 src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea14c6627ce131ff7c06502"> and <img style='object-fit:contain' width=127 height=29 src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea14c6627ce131ff7c06503"> What is the amplitude of the resultant wave
Question 42 :
The tones that are separated by three octaves have a frequency ratio of
Question 44 : The relation between frequency $(n)$ and wavelength $(\lambda)$ of a sound wave is given by <div>($v$ is velocity, $n$ is frequency and $T$ is time-period)</div>
Question 45 :
A source of frequency 500 Hertz emits waves of wavelength $2  m$. How long does it take the waves to travel $300  m$ ?
Question 46 :
Let, the velocity of a wave be $V$, time period $T$, frequency $\gamma$ and wavelength $\lambda$. Mark the correct relation between these three.
Question 47 :
The distance between two consecutive crests in a wave train produced on a string is 5 cm. If two complete waves pass through any point per second, the velocity of the wave is :<br>
Question 48 :
An anchored boat is rocked by waves whose crests are 100 m apart and whose velocity is $25\:m/s$. How often do the crests reach the boat?<br>
Question 50 :
When a sound wave goes from one medium to another, the quantity that remains unchanged is
Question 51 : Unlike a laboratory sonometer, a stringed instrument is seldom plucked in the middle. Supposing a sitar string is plucked at about <img style='object-fit:contain' width=23 height=27 src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea14c371ac76a0b860fbca0"> of its length from the end. The most prominent harmonic would be
Question 52 :
A spring of force constant K is first stretched by distance a from its natural length and then future by distance b. The work done in stretching the part b is
Question 53 :
A source of wave produces $3$ crests and $3$ troughs in $2 ms$, the frequency of the wave is
Question 54 :
A simple harmonic progressive wave is represented by the equation : $ y = 8 \sin 2 \pi \left (0.1x - 2t \right )$ where x and y are in cm and t is in seconds. At any instant the phase difference between two particles separated by 2.0 cm in the x-direction is <b>[MP PMT 2000]</b>
Question 55 :
The electric field of a wave in free space is given by $E = 10\cos(10^7t+kx)\hat{j}\space V\space m^{-1}$. It can be inferred that
Question 56 :
Two vibration strings of the same material but lengths L and 2L have radii 2r and r, respectively. The are stretched under the same tension. Both the strings vibrate in their fundamental modes, the one of length L with frequency $n_1$ and the other with frequency $n_2$. The ratio $n_1/n_2$ is given by
Question 57 :
If the frequency of a wave is increased by 25 %, then the change in its wavelength will be:<br/>(medium not changed)<br/>
Question 58 :
A wave is represented by the equation y = (0.001) sin [2x+50t] where is x in meter t is sec and y in mm.
Question 59 :
Which of the following statement is incorrect for a stationary wave?
Question 60 :
The path difference between the two waves $y_1 = a_1 \sin \left (\omega t - \frac{2 \pi x} {\lambda} \right )$ and $y_2 = a_2 \cos \left (\omega t - \frac{2 \pi x} {\lambda} + \phi \right )$ <b> [MP PMT 1994]</b>
Question 61 :
A simple harmonic wavetrain of amplitude $5\ cm$ and frequency $100\ Hz$ is travelling in the positive $x-$ direction with a velocity of $30\ m/s$. The displacement velocity and acceleration at $t=3s$ of a particle of the medium situated $100\ cm$ from the origin are respectively.
Question 62 :
Two small boats are $10m$ apart on a lake. Each pops up and down with a period of  $4.0\ \text{seconds}$ due to wave motion on the surface of the water. When one boat is at its highest point, the other boat is at its lowest point. Both boats are always within a single cycle of the waves. The speed of the waves is
Question 63 :
A sound wave travels with a speed of $330 ms^{-1}$ in air. If the wavelength of the wave is 3.3m, then the frequency of the wave is ______.
Question 64 :
Let the two waves $y_1 = A \sin {(kx - \omega t)}$ and $y_2 = A \sin {(kx + \omega t)}$ form a standing wave on a string. Now if an additional phase difference of $\phi$ is created between two waves, then
Question 65 :
A wire of length l , area of cross section A and young's modules of elasticity y is suspended from the roof of a building. A block of mass m is attached at lower end of the wire. if the block is displaced from its mean position and then released the block starts oscillating. Time period of these oscillation will be
Question 66 :
Equations of a stationary and a travelling waves are as follows, ${ y }_{ 1 }=a\sin { kx } \cos { \omega t } $ and ${ y }_{ 2 }=a\sin { \left( \omega t-kx \right)  }$. The phase difference between two points ${ x }_{ 1 }=\dfrac { \pi  }{ 3k } $ and ${ x }_{ 2 }=\dfrac { 3\pi  }{ 2k } $ are ${ \phi  }_{ 1 }$ and ${ \phi  }_{ 2 }$ respectively for two waves. The ratio $\dfrac { { \phi  }_{ 1 } }{ { \phi  }_{ 2 } } $ is :
Question 67 :
A wave of wavelength 4 mm is produced in air and it travels at a speed of 300 m/s. Will it be audible?
Question 68 :
Equations of a stationary wave and a travelling wave are ${ y }_{ 1 } = a\ sinkx\ cos \omega t$ and ${ y }_{ 2 } = a\ sin (\omega t - kx)$. The phase difference between two points ${ x }_{ 1 }\ =\ \dfrac { \pi }{ 3k } \ and\ { x }_{ 2 }\ =\ \dfrac { 3\pi }{ 2k } \ is\ { \phi }_{ 1 }$ for the first wave and ${ \phi }_{ 2 }$ for the second wave. The ratio $\dfrac { { \phi }_{ 1 } }{ { \phi }_{ 2 } }$ is :
Question 69 :
The frequency of fork is 512 Hz and the sound produced by it travels 42 metres as the tuning fork completes 64 vibrations. Find the velocity of sound :<br/>
Question 70 :
Two identical piano wires kept under the same tension T have a fundamental frequency of 600{tex} \mathrm { Hz } {/tex} . The fractional increase in the tension of one of the wires which will lead to occurrence of 6 beats/s when both the wires oscillate together would be
Question 71 :
The equation of a progressive wave are $Y=\sin{\left[200\pi\left(t-\cfrac{x}{330}\right)\right]}$, where $x$ is in meter and f is second. The frequency and velocity of wave are
Question 72 :
A transverse wave travels along the Z-axis. The particles of the medium must move
