1
TS EAMCET 2023 (Online) 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

When some amount of heat energy is supplied to a monatomic gas, the percentage of heat energy used for increasing the internal energy of the gas $(\gamma=5 / 3)$ is

A

60

B

40

C

20

D

80

2
TS EAMCET 2023 (Online) 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The average energy possessed by an oscillator at a temperature 300 K is (Boltzmann constant $=1.38 \times 10^{-23} \mathrm{JK}^{-1}$ )

A

$2.14 \times 10^{-2} \mathrm{~J}$

B

$2.07 \times 10^{-19} \mathrm{~J}$

C

$4.14 \times 10^{-21} \mathrm{~J}$

D

$4.6 \times 10^{-21} \mathrm{~J}$

3
TS EAMCET 2023 (Online) 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A wave is given by $y=5 \times 10^{-3} \sin \left(12.5 \pi x-\frac{\pi}{2} t\right)$. Then its wavelength and time period are respectively ( $y$ and $x$ are in metres and $t$ is in seconds)

A

$0.04 \mathrm{~m}, 4 \mathrm{~s}$

B

$0.16 \mathrm{~m}, 1 \mathrm{~s}$

C

$0.04 \mathrm{~m}, 2 \mathrm{~s}$

D

$0.16 \mathrm{~m}, 4 \mathrm{~s}$

4
TS EAMCET 2023 (Online) 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A tuning fork $A$ of frequency 250 Hz and another tuning fork $B$ of frequency $x$ produced 5 beats per second when vibrated together. If the fork $B$ is waxed and vibrated together with $A$, then 3 beats per second are produced. Then, $x=$

A

255 Hz

B

245 Hz

C

247 Hz

D

253 Hz

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