#tmkoc Paheli 1 - whare is key ?? | riddles and puzzles for IQ test | Hindi Paheli #shorts

Paheliyan and Detective Riddles To Test Your Brain| Hindi Paheliyan | Mind Your Logic

Boojho , Paheli and their firend Golu were provided with a test tube each containing China rose solution which was pink in colour .Boojho added two drops of solution 'A' in his test tube and got dark pink colour .Paheli added 2 drops of solution 'B' to her test tube and got green colour.Golu added 2 drops of solution 'C' but could not get any change in colour Suggest the possible cause for the variation in their results.

Shown a short magnet executing small oscillations in vibration magnetometers in earth's magnetic field having horizontal component 24 muT . The period of oscillation is 0.1 s . When the key K is closed, an upward current of 18 A is established as shown. The new time period is

Paheli had heard that rain water is as good as distilled water. So, she collected some rain water in a clean glass tumbler and tested it using a tester. To her surprise, she found that the compass needle showed deflection. What could be the reasons?