Explanation

• Meticulous means محتاط
• Conscientious means باضمیر
• Precise means عین مطابق

Last verified on 23-05-2026

Explanation

• A velocity–time graph shows how velocity changes with time.
• The slope gives acceleration.
• The area under the graph represents motion covered.
• It connects velocity with displacement.

Last verified on 22-05-2026

Explanation

• Coulomb's Law states that the magnitude of the electrostatic force (F) between two point charges (q1 and q2) is directly proportional to the product of the charges and inversely proportional to the square of the distance (r) between them.
• Mathematically, this is expressed as: F ∝ (q1 × q2) / r².
• This law describes the relationship between electric charges and the force they exert on each other.

Last verified on 22-05-2026

Explanation

Diligent means محنتی

Lazy means سست

Last updated question NS on 09 MAY 2026

Explanation

Explanation

• Crossing over is the exchange of genetic material between non-sister chromatids of homologous chromosomes.
  • Occurs during prophase I of meiosis.
  • Increases genetic variation in gametes.
  • Ensures diverse traits in offspring.
  • Essential for evolution and natural selection.

Last verified on 06-02-2026

Explanation

• Definition: Process where mRNA sequence is decoded to make a protein
• Location: Ribosomes in cytoplasm (or rough ER in eukaryotes)
• Inputs: mRNA, tRNA, amino acids, ribosomes
• Steps: Initiation → Elongation → Termination
• Outcome: Polypeptide chain (protein) is formed according to mRNA code

Last verified on 05-02-2026

Explanation

• A virion is the fully developed, infectious form of a virus capable of infecting a host.
• It contains genetic material (DNA or RNA) and a protein coat (capsid), sometimes with an envelope.
  

Additional information:

• Capsomere: Protein subunit of the capsid.
• Envelope: Lipid layer around some viruses.
• Prion: Infectious protein.

Last verified on 19-01-2026

Explanation

- Resistivity (ρ) is a measure of how strongly a material opposes the flow of electric current.

- The reciprocal of resistivity is called conductivity (σ).

Mathematically:  

σ = 1 / ρ

- Conductivity indicates how easily a material allows the flow of electric current.

- The other options:  

  - Impedance relates to resistance and reactance in AC circuits.  

  - Admittance is the reciprocal of impedance.  

  - Resistance is the opposition to current flow but depends on dimensions, unlike resistivity.

Explanation

The SI unit of electric charge is the coulomb, represented by the symbol C.

One coulomb is the amount of charge that passes through a conductor carrying one ampere of current for one second.

It's also equal to the charge of about 6.24 quintillion electrons or protons.