Question
A shopkeeper marked his article 40% above its cost price
and offered a discount of 50%. If cost price of the article is Rs. 550, then find profit or loss of the shopkeeper on selling the articleSolution
Marked price of the article = 1.4 × 550 = Rs. 770 Selling price of the article = 0.5 × 770 = Rs. 385 Loss = 550 – 385 = Rs. 165
If the specific heat at constant pressure Cₚ is greater than Cᵥ , the difference Cₚ -Cᵥ is equal to:
In a diatomic gas at ordinary temperatures, how many degrees of freedom contribute to internal energy?
Which of the following decays does not change the atomic number of the nucleus?
What will be the energy possessed by a stationary object of mass 10 kg placed at a height of 20 m above the ground? (Take g = 10 m/s^2)
The frequency of ultrasonic waves is:
Two point charges +4 μC and –3 μC are placed 0.3 m apart. Find the electric potential at a point 0.2 m from the +4 μC and 0.25 m from the –3 μC....
Which of the following is a characteristic of sound waves?
What happens to the wavelength of light when it passes from a medium of higher refractive index to a medium of lower refractive index?
Frequency modulation (FM) changes:
The wave nature of matter was proposed by:
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