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Total quantity of mixture after removing 4-litres = 45 × (13/5) = 117 litres So, original quantity of the mixture = 117 + 4 = 121 litres
When a bottle of scent is kept open in a corner of a room its odour is felt in all parts of the room. This is clue to the phenomenon of –
Which law states that the total current entering a junction is equal to the total current leaving the junction?
In an experimental arrangement of a Fresnel's biprism, monochromatic light of wavelength 2. is used to produce interference fringe pattern. On introduc...
The pitch of a sound is primarily determined by which of the following?
The density of the liquid when heated
Newton's rings can be obtained in:
Which of the following is the ultimate source of energy?
Which of the following instrument is used to measure heat radiation?
A spherical ball made of steel when dropped in mercury container will –
Which type of mirror is used in car headlights?
