MCQ
If two bodies are projected at 30 and 60 respectively, with the same velocity, then
- ✓Their ranges are same
- BTheir heights are same
- CTheir times of flight are same
- DAll of these
✓
Answer
Correct option: A.
Their ranges are same
(a) For complementary angles range is same.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
If a body describes a circular motion under inverse square field, the time taken to complete one revolution $\mathrm{T}$ is related to the radius of the circular orbit as
→At a place, the horizontal and vertical intensities of earth's magnetic field is $0.30$ Gauss and $0.173$ Gauss respectively. The angle of dip at this place is
→If a skater of weight $3 \mathrm{~kg}$ has initial speed $32 \mathrm{~m} / \mathrm{s}$ and second one of weight $4 \mathrm{~kg}$ has $5 \mathrm{~m} / \mathrm{s}$. After collision, they have speed $($couple$) \ 5$ $\mathrm{m} / \mathrm{s}$. Then the loss in $K.E$. is
→A balloon starts rising from the ground with an acceleration of 1.25 $m / s$ after $8 s$, a stone is released from the balloon. The stone will $(g=10 m / s )$
→The light rays having photons of energy $1.8\ \mathrm{eV}$ are falling on a metal surface having a work function $1.2\ \mathrm{eV}$. What is the stopping potential to be applied to stop the emitting electrons
→The average dipole moment of $Fe$ atoms is $1.8 × 10^{-23}\ A-m^2$ . The magnetic moment of an iron rod of length $10\ cm$ and diameter $1\,cm$ is........$A-m^2$ : (density and at. wt. of $Fe$ are $7.87\ g/cm^3$ and $55.87$ )
→To make a $\text{PN}$ junction conducting
→A point source emits sound equally in all directions in a nonabsorbing medium, Two points $P$ and $Q$ are at distance of $2 \mathrm{~m}$ and $3 m$ respectively from the source. The ratio of the intensities of the waves at $P$ and $Q$ is
→The diagram shows the path of four $\alpha$-particles of the same energy being scattered by the nucleus of an atom simultaneously. Which of these are/is not physically possible
→
A coil has $2000$ turns and area of $70 \mathrm{~cm}^2$. The magnetic field perpendicular to the plane of the coil is $0.3 \mathrm{~Wb} / \mathrm{m}^2$ and takes $0.1 \mathrm{sec}$ to rotate through $180^{\circ}$. The value of the induced e.m.f. will be
→