Question
What phenomenon occurs when the angle of incidence
exceeds the critical angle?Solution
Total internal reflection occurs when the angle of incidence is greater than the critical angle, causing the light to be completely reflected back into the medium rather than refracting.
If the third proportion of 32 and 48 is “0.5k”, then find the value of (k − 44) : (k + 16).
Find the third proportion of 25 and 40.
If x runs are second by Rohit, y runs by Shreyas and z runs by Virat, then x : y = y : z = 3:2. If total number of runs scored by Rohit, Shreyas and Vir...
Rs. 23121 are divided between A and B in the ratio 2:7. What is the difference between thrice the share of A and twice the share of B?
A container holds 180 litres of a milk and water mixture, where the amount of milk exceeds the amount of water by 44 litres. If 8 litres of milk and 12 ...
If 3 kg of metal, of which 1/4 is aluminium and the rest is magnesium, be mixed with 5 kg of metal, of which 1/3 is aluminium and the rest is magnesium,...
In an office, the ratio of the number of males to number of females is 11:7. If 2 males joined the class and 6 females left the class, then the ratio of...
A plot has to be divided among P, Q and R in the ratio 4:6:9 respectively. If the area of plot received by R is 5100m² more than the area of plot recei...
If the third proportion of 16 and 20 is “0.5k”, then find the value of (k − 20) : (k + 10).
Ratio of males to females in village ‘A’ and village ‘B’ is 4:5 and 11:12, respectively and number of females in village ‘B’ is 25% more tha...
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