MCQ
A body is projected vertically upwards from earth's surface with velocity $2v_e$ where $v_e$ is escape velocity from earth's surface. The velocity when body escapes the gravitational pull is $.......$
  • A
    $\sqrt{7} V_e$
  • B
    $\sqrt{5} V_e$
  • C
    $2V_e$
  • $\sqrt{3} V_e$

Answer

Correct option: D.
$\sqrt{3} V_e$
$\sqrt{3} V_e$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Polarised dielectric is equivalent to ______.
A uniform rod of length $'\ 6L\ '$ and mass $'\ 8 m\ '$ is pivoted at its centre $'\ C\ '.$ Two masses $'\ m\ '$ and $'\ 2m\ '$ with speed $2v, v$ as shown strikes the rod and stick to the rod. Initially the rod is at rest. Due to impact, if it rotates with angular velocity $'w_1\ '$ then $'w\ '$ will be $........$
Image ​​​​​​​
According to Werner's theory based on experiment the formula of coordination compound is $CoCl _3 \cdot 3 NH _3$ then the molar conductance in mho $mol ^{-1}$ and number of $Cl ^{-}$ions precipitated by $AgNO _3$ respectively is.........
Which of the following is TRUE for the temporal lobe?
Two wires are producing fundamental notes of the same frequency. Change in which of the following factors of one wire will NOT produce beats between them?
Which among the following is a product of hydrolysis of one mole raffinose?
Identify the correct match of type of water given in Column-I and its character in column-II and select the correct option.
Column-IColumn· II
(i)Capillary water(a)Present in the form of hydrated oxides of Silicon and Aluminium
(ii)Hygroscopic water(b)Goes down through large pores between soil particles and reach water table
(iii)Combined water(c)Held in between small non-colloidal soil particles
(iv)Gravitational water(d)Held tightly around soil particles by adhesive forces
The r.m.s. value of induced voltage in a coil of 25 turns each of area 30 sq. cm. rotating at 2000 r.p.m. about an axis at right angles to magnetic field is $\left(B=5 \times 10^{-4} Wb / m ^2\right)$ ____________.
Let y = `cot^-1((5x^2 + 1)/(4x)) + cot^-1((2x - 3)/(2 + 3x))`, then `dy/dx` = ______
Which of the following molecules reduces Fehling's solution?