Water vs salt + biscuits Experiment || simple experiment do at home || #ytshorts #e_bull_jet #shorts

Figure below shows a shampoo bottle in a perfect cylindrical shape In a simple experiment, the stability of the bottle filled with different amount of shampoo volume is observed. The bottle is tilted from one side and then released. Let the angle theta depicts the critical angular displacement resulting in the bottle losing its stability and tripping over. Choose the graph correctly depicting the fraction f of shampoo filled (f= 1 corresponds to completely filled) vs the tripping angle theta

A scientist has a house just beside a busy highway. He collects leaves from some plants growing in his garden to do radio-carbon dating ( to estimate the age of the plant by estimating the amount of a radioisotope of carbon in its tissues ). Surprisingly the radio-carbon dating shows that the plant is a few thousand years old. (a) Was the result of the radio-carbon dating wrong or can you propose a reason for such an observation ? (b) What simple experiment can be done to test the reason that you have proposed ?

Carry out the following osmosis experiment: Take four peeled potato halves and scoop each one out to make potato cups. One of these potato cups should be made from a boiled potato. Put each potato cup in a trough containing water. Now, (a) Keep cup A empty (b) Put one teaspoon sugar in cup B (c) Put one teaspoon salt in cup C (d) Put one teaspoon sugar in the boiled potato cup D. Keep these for two hours. Then observe the four potato cups and answer the following: (i) Explain why water gathers in the hollowed portion of B and C. (ii) Why is potato A necessary for this experiment? (iii) Explain why water does not gather in the hollowed-out portions of A and D.

Mohini, a resident of Chandigarh went to Shimla with her parents. There she same plant that they have in their backyard, at home. However, she observed that while the plants in their backyard bore white flowers, those in Shimla had pink flowers. She brought home some seeds of the plant from Shimla and planted them in Chandigarh. Upon performing self breeding for several generation she found that the plant from Shimla produced only white flowers. (a) According to you what might be the reason for his observation-genetic or eavironmental factors ? (b) Suggest a simple experiment to determine whether this variation is genetic in nature (c) Suggest another experiment to check whether this variation in flower color is due to environmental factors

Two students X and Y have to do their experiment on plotting the temperature-time graph for a hot body as it cools to room temperature. They do their experiments in the same lab, using completely identical apparatus, take equal amounts of tap water heated up to the same temperature, start their observations simultaneously and note the temperature values at identically spaced intervals of time. Their temperature-time graphs, plotted on a given graph paper, with the same given choices of scales along the axis, are however, as shown: The following could be the reason for this difference: (A) Use of an overhead fan by student X. (B) Use of an overhead fan by student Y. (C) Less frequent stirring of water by student X. (D) Less frequent stirring of water by student Y. The most likely reason is:

A laboratory had the folowing apparatus available in it : (A) Two thin hollow wooden tubes (B) An intense and board source of sound ( C) An intense pointed source of sound (D) A sharp pointed detector to detect the sound ( E) A well polished metal sheet (F) A white painted thermocol sheet A student can do his experiment to verify the laws of reflection of sound successfully by choosing the appartus labelled as :