Light travelling through a small pinhole usually does not make a shadow with a distinct…
Light travelling through a small pinhole usually does not make a shadow with a distinct sharp edge because…
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A boat is rocked by waves of speed 30ms-1 whose successive crest are 10m apart….
A boat is rocked by waves of speed 30ms-1 whose successive crest are 10m apart. Calculate the rate…
The maximum displacement of a vibrating tunning fork is its
The maximum displacement of a vibrating tunning fork is its A. amplitude B. frequency C. period D. wavelength…
Which of the following factors affect the rate of evaporation of a liquid? i. Exposed…
Which of the following factors affect the rate of evaporation of a liquid? i. Exposed surface area ii…
Which of the following is used to measure relative humidity?
Which of the following is used to measure relative humidity? A. hydrometer B. barometer C. hypsometer D. hygrometer…
It takes 4 minutes to boil a quantity of water using an electrical heating coil….
It takes 4 minutes to boil a quantity of water using an electrical heating coil. How long will…
When table salt is added to ice, the melting point of the ice
When table salt is added to ice, the melting point of the ice A. is raised B. is…
A faulty thermometer registers 102.5oC t 100oC. If the thermometer has no zero hour, what…
A faulty thermometer registers 102.5oC t 100oC. If the thermometer has no zero hour, what will it register…
A rod of initial lenght 2m at a temperature of 25oC is heated to 80oC….
A rod of initial lenght 2m at a temperature of 25oC is heated to 80oC. Calculate the increase…
as a bicycle Tyre was being pumped up, it was noticed that contrary to Boyle’s…
as a bicycle Tyre was being pumped up, it was noticed that contrary to Boyle’s law the volume…