- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
A sheet of tin sinks in water but if the same sheet is converted into a box or boat, it floats. Why ?
A sheet of tin sinks in water because the density of tin is higher than that of water. At the point when a similar sheet of tin is changed over into a box or a boat, then, at that point, because of the catching of parcel of 'light' air in the box or boat, the normal density of the box or boat made of the tin sheet becomes lower than that of water and subsequently, in result, it box or boat made of tin sheet floats in water.
- Related Articles
- A $\frac{1}{2}\ kg$ sheet of tin sinks in water but if the same sheet is converted into a box or boat, it floats. Why?
- Steel sinks in water but a steel boat floats. Why ?
- Explain why, a piece of glass sinks in water but it floats in mercury.
- An iron nail sinks in water but it floats in mercury. Why ?
- If we put an empty closed plastic bottle in water, it floats but same filled with sand, sinks in water. Why?
- Cotton is solid but it floats on water. Why?
- Why a living person sinks and a dead person floats in water?
- If a fresh egg is put into a beaker filled with water, it sinks. On dissolving a lot of salt in the water, the egg begins to rise and then floats. Why?
- A plastic box \( 1.5 \mathrm{~m} \) long, \( 1.25 \mathrm{~m} \) wide and \( 65 \mathrm{~cm} \) deep is to he made. It is opened at the top. Ignoring the thickness of the plastic sheet, determine:(i) The area of the sheet required for making the box.(ii) The cost of sheet for it, if a sheet measuring \( 1 \mathrm{~m}^{2} \) costs Rs. 20.
- A plastic box \( 1.5 \mathrm{~m} \) long. \( 1.25 \mathrm{~m} \) wide and \( 65 \mathrm{~cm} \) deep is to be made. It is opened at the top. Ignoring the thickness of the plastic sheet, determine:(i) The area of the sheet required for making the box.(ii) The cost of sheet for it, if a sheet measuring \( 1 \mathrm{~m}^{2} \) costs \( \mathrm{Rs.} 20 \).
- Why will a sheet of paper fall slower than one that is crumpled into a ball?
- Classify the objects or material given below as opaque, transparent or translucent and luminous or non-luminous:Air, Water, a piece of rock, a sheet of aluminium, a mirror, a wooden board, a sheet of polythene, a CD, smoke, a sheet of plane glass, fog, piece of red hot iron, an umbrella, a lighted fluorescent tube, a wall, a sheet of carbon paper, the flame of a gas burner, a sheet of cardboard, a lighted torch, a sheet of cellophane, a wire mesh, kerosene stove, sun, firefly, the moon.
- Classify the objects or materials given below as opaque, transparent or translucent, and luminous or non-luminous:Air, water, a piece of rock, a sheet of aluminum, a mirror, a wooden board, a sheet of polythene, a CD, smoke, a sheet of plane glass, fog, a piece of red hot iron, an umbrella, a lighted fluorescent tube, a wall, a sheet of carbon paper, the flame of a gas burner, a sheet of cardboard, a lighted torch, a sheet of cellophane, a wire mesh, kerosene stove, sun, firefly, moon.
- When water is cooled to a temperature x, it gets converted into ice at temperature x by a process called P. And when ice at temperature x is warmed, it gets reconverted into water at the same temperature x in a process called Q.(a) What is the value of temperature x in Kelvin?(b) What is the process P known as?(c) What is the name of energy released during process P?(d) What is the process Q known as?(e) What is the name of energy absorbed during process Q?
- It is required to make a closed cylindrical tank of height 1m and base diameter 140 cm from a metal sheet. How many square metres of the sheet are required for the same?
Advertisements