Which type of wall is present in the closed system?
APermeable wall
BSemi-permeable wall
CAdiabatic wall
DDiathermal wall
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എന്താണ് ഡാർട്ട് സിസ്റ്റം (DART SYSTEM) ?
Consider the following statements: Which of the above statements help(s) us to understand the blue colour of a clear sky?
- (a) The red light has a wavelength about 1.8 times greater than the blue light.
- b) When sunlight passes through the atmosphere, the fine particles scatter blue light more strongly than red.
A metallic wire having resistivity p is cut into four equal parts. The resistivity of each part is?
A beam of white light undergoes dispersion through a triangular glass prism forming a band of seven colours. Which of the statements is/are correct?
- a) The red-coloured component has minimum refractive index.
- (b) The violet-coloured component deviates the least.
- (c) All components of white light have same speed in glass.
റേഡിയോ പരിപാടികളുടെ ദീർഘദൂര പ്രക്ഷേപണം സാധ്യമാകുന്ന അന്തരീക്ഷ ഭാഗം ഏത് ?