मानव शरीर से जुडी 10 मजेदार बातें | 10 Facts About Human Body | Scientific Facts In Hindi | #shorts

10 हिंदी जासूसी और मजेदार पहेलियाँ | Hindi Paheliyan | Hindi Paheliyan | Mind Your Logic

When a bullet of mass 10 g and speed 100 m/s penetrates up to distance 1 cm in a human body at rest. The resistance offered by human body is :

Statement/ कथन : The scientific study of plants is known as Botany पौधों के वैज्ञानिक अध्ययन को वनस्पति विज्ञान के रूप में जाना जाता है। Conclusion/ निष्कर्ष: l. Botany helps us understand human behaviour./वनस्पति विज्ञान हमें मानव व्यवहार को समझने में मदद करता है। ll. Botany helps us in understanding animal bodies./ वनस्पति शरीर जानवरों को समझने में हमारी मदद करता है।

Most of the weight of the human body is because of the water present inside the body. Although various dissolved salts are also present, their concentration is very small and hence density of water inside the body can be taken as 1 gm /ml. A man weighing 100 kg is injected with a sample of radioactive water containing Tritium having activity 6.4 xx 10^(12) d pm. After 10 min sample of water from the body is analysed and specific activity of water taken from body is found to be (10^(6))/(27) dps//ml Assuming the half life of the radioactive substance in water to be 2 min , calculate % by weight of water present in the human body.

The human body is made up mostly of water. In fact, about 67% of a person’s total body weight is water. If Jyoti weights 56 kg, how much of her weight is water?