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Mdcat-past-papers - DUHS Quiz

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101. The speed of sound at 0°C in air is 332m/s. What will be the speed of sound at 50°C?



102. Two transverse travelling waves are presented by these equations. y₁ = A₀sin(Kx−ωt) and y₂ = A₀sin(kx−ωt−Ø). These two waves differ in:



103. Longitudinal waves exhibit:



104. If the fundamental frequency of vibration of a string fixed at both ends is 50Hz, the fourth harmonic will be:



105. In standing waves, the distance between two consecutive nodes or anti-nodes is:



106. Applications of Doppler's effect:



107. The ratio of molar specific heat of a gas at constant pressure to its molar specific heat at constant volume is:



108. Specific heat capacity of a gas is measured in:



109. The property of the system that does not change during adiabatic change is:



110. Which law has a graph similar to the graph of isothermal process?



111. The process in which no external work is performed is called:



112. First law of thermodynamics is mathematically represented as:



113. Two similar point charges, each of 1 coulomb, placed in free space 1m apart, repel each other with a force of



114. Which law explains the relation between amount of charges and force between them?



115. Consider three-point charges A, B, and C as shown in figure. If the resultant force on charge B due to charge A and charge C is 0.024 N, the direction of resultant force will be



116. The electric field intensity between two uniform, oppositely charged parallel plates is:



117. In equations E = -ΔV/Δx, Negative sign indicates that:



118. What does the electric field around a charge represent?



119. Which statement is the best for electric flux of a point charge?



120. The change in electric potential with respect to distance equals to:



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