- According to Boyle’s Law, the product of pressure and volume of a gas at constant temperature is?
Zero
Constant
Inversely proportional to T
Infinite
Answer and explanation
Boyle’s law: (at constant T).
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Zero
Constant
Inversely proportional to T
Infinite
Boyle’s law: (at constant T).
30 cm
40 cm
60 cm
20 cm
Using lens formula: , solve for u.
Scurvy
Rickets
Night blindness
Beriberi
Lack of Vitamin D leads to rickets in children.
Left-hand rule
Right-hand thumb rule
Fleming’s left-hand rule
None of these
Right-hand thumb rule determines the field direction.
Iron
Copper
Sulphur
Aluminium
Sulphur (S) is a non-metal.
Carbon dioxide
Oxygen
Nitrogen
Hydrogen
Photosynthesis releases oxygen (O₂).
0°C
32°C
100°C
-273°C
Water freezes at 0°C.
Acidic
Basic
Neutral
Strongly basic
pH 7 represents a neutral solution like pure water.
Frequency
Sound intensity
Wavelength
Speed
Sound intensity (loudness) is measured in decibels.
Amylase
Lipase
Pepsin
Trypsin
Pepsin breaks down proteins into smaller peptides.
Covalent bond
Metallic bond
Ionic bond
Hydrogen bond
Na donates an electron to Cl, forming an ionic bond.
V = I/R
V = IR
V = R/I
V = I + R
Formula:
Nucleus
Mitochondria
Ribosome
Lysosome
Mitochondria are called the powerhouse of the cell because they generate ATP energy.
Group 2
Group 1
Group 17
Group 18
Group 1 elements (Li, Na, K, Rb, Cs, Fr) are called alkali metals.
Motion changes without any force
Rest and motion continue until an external force acts
Only valid for planets
Only applies in vacuum
Law of Inertia: A body remains at rest or in uniform motion unless acted upon by an external force.