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Start learning 50% faster. Sign in nowImam Ali Shrine, the holiest site of Shia Muslims and one of the most important sites of Najaf. Najaf is located in Iraq.
Which of the following is the ultimate source of energy?
A nucleus with mass number A and atomic number Z undergoes β⁻ decay. Which of the following is correct about the daughter nucleus?
Mirror formula is
A particle is projected such that its velocity vector sweeps equal angles with horizontal at equal time intervals. The motion is best described as:
A uranium nucleus undergoes fission and releases 200 MeV per event. If 1 gram undergoes complete fission, the energy released in kWh is:
A person throws a ball from ground level at speed u and angle θ. The ball reaches maximum height H and range R. What is the ratio H/R?
Which of the following electromagnetic waves are used for detection like Geiger tubes?
A metallic conductor of circular cross-section has radius R. If current density varies as J = Jₒ(1−r/R), the total current through the conductor is:...
Which law states that “an object remains at rest or in uniform motion unless acted upon by an external force”?
A capacitor of 4 µF is charged to 100 V. It is then connected across an uncharged 2 µF capacitor. Final common voltage is:
