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Sonal Chauhan
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Sonal Chauhan
Asked: May 17, 2024In: NCERT Books

Why do bicycle tubes burst mostly in summer?

In summer, the heat causes rubber to harden, reducing its flexibility. As a result, when air inside the bicycle tube expands due to the heat, the hardened rubber cannot adequately accommodate the increased pressure. This leads to increased stress on ...

bicycle tubes burstbicycle tubes burst in summer
  • 1 1 Answer
  • 17 Views
  • 1 Vote
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Sonal Chauhan
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Sonal Chauhan
Asked: May 17, 2024In: NCERT Books

When a glass rod is kept in steam, its length increases but its width

When a glass rod is exposed to steam, its length increases due to thermal expansion, while its width remains unaffected. Glass primarily expands in the direction of the applied heat, elongating along its length. However, its width does not experience ...

a glass roda glass rod is kept in steamits length increases
  • 1 1 Answer
  • 176 Views
  • 1 Vote
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Sonal Chauhan
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Sonal Chauhan
Asked: May 17, 2024In: NCERT Books

A solid metal ball has a cavity inside it. When this metal ball is heated, the volume of the cavity will

When the solid metal ball is heated, the particles inside it gain kinetic energy, causing them to move more vigorously, leading to expansion. This expansion includes the volume of the cavity inside the ball, resulting in an increase in its ...

metal ball is heatedthe volume of the cavity willwhen metal ball is heated
  • 1 1 Answer
  • 28 Views
  • 1 Vote
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Sonal Chauhan
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Sonal Chauhan
Asked: May 17, 2024In: NCERT Books

When a bottle is filled with water and allowed to freeze, then the bottle breaks, because

When a bottle is filled with water and allowed to freeze, the bottle breaks because water expands as it freezes, exerting pressure on the walls of the bottle. This expansion exceeds the tensile strength of the bottle material, causing it ...

a bottle is filled with water and allowed to freezefreeze water bottle breaks whyfreeze water filled bottle breaks
  • 1 1 Answer
  • 12 Views
  • 1 Vote
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Sonal Chauhan
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Sonal Chauhan
Asked: May 17, 2024In: CBSE

Why is a small space left at the joint between two railway tracks?

A small space is left at the joint between two railway tracks because the metal expands when heated and contracts when cooled. This prevents the tracks from buckling in the heat or creating gaps in the cold, ensuring safe and ...

joint between two railway trackssmall space between two railway trackssmall space left at the joint between two railway tracks
  • 1 1 Answer
  • 12 Views
  • 1 Vote
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