The kinetic energies of a planet in an elliptical orbit about the Sun, at positions A, B and C are KA,KB and KCrespectively. AC is the major axis and SB is perpendicular to AC to the position of the Sun S as shown in the figure. Then

# The kinetic energies of a planet in an elliptical orbit about the Sun, at positions A, B and C are respectively. AC is the major axis and SB is perpendicular to AC to the position of the Sun S as shown in the figure. Then

1. A

${K}_{A}<{K}_{B}<{K}_{C}$

2. B

${K}_{A}>{K}_{B}>{K}_{C}$

3. C

${K}_{B}<{K}_{A}<{K}_{C}$

4. D

${K}_{B}>{K}_{A}>{K}_{C}$

Fill Out the Form for Expert Academic Guidance!l

+91

Live ClassesBooksTest SeriesSelf Learning

Verify OTP Code (required)

### Solution:

$\mathrm{KE}=\frac{1}{2}{\mathrm{mv}}^{2}$

$\mathrm{v}\propto 1/\mathrm{r}$

${\mathrm{r}}_{\mathrm{A}}<{\mathrm{r}}_{\mathrm{B}}<{\mathrm{r}}_{\mathrm{C}}K{E}_{A}>K{E}_{B}>K{E}_{C}$

$⇒{\mathrm{V}}_{\mathrm{A}}>{\mathrm{V}}_{\mathrm{B}}>{\mathrm{V}}_{\mathrm{C}}$

## Related content

 Sine and Cosine Waves Zener Diode Hygrometer Half Wave Rectifier Compound Microscope Solar Cooker MCB Difference Between Scalar and Vector Quantity Difference Between Interference and Diffraction Difference Between Heat and Temperature

+91

Live ClassesBooksTest SeriesSelf Learning

Verify OTP Code (required)