Home
Class 11
PHYSICS
When we use a clinical thermometer we re...

When we use a clinical thermometer we require longer time to register the temperature of a human body than to shake it down to the initial ambient temperature. This observation can be due to

A

Thermometer records temperature by absorbing heat from human body by the phenomena of conduction, which is relatively a slow process, hence takes longer time

B

Thermometer records temperature by absorbing heat from human body through convection, which is relatively a slow process aimed hence takes longer time

C

Thermometer after taking the observation/reading is shaken vigorously to come back to its ambient temperature, hence this takes place quickly

D

Warm thermometer after taking the observation/reading is shaken and thus looses heat by conduction and radiation to the surroundings, hence attains its ambient temperature quickly

Text Solution

Verified by Experts

The correct Answer is:
C, D
Promotional Banner

Topper's Solved these Questions

  • THERMAL PROPERTIES OF MATTER

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL - II) PRACTICE SHEET (ADVANCED) Linked Comprehension Type Questions|11 Videos

  • THERMAL PROPERTIES OF MATTER

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL - II) PRACTICE SHEET (ADVANCED) Matrix Matching Type Questions|2 Videos

  • THERMAL PROPERTIES OF MATTER

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL - II) PRACTICE SHEET (ADVANCED) Straight Objective Type Questions (Expansion of Gases & KTG :)|9 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH SERIES|Exercise PRACTICE EXERCISE|99 Videos

  • THERMODYNAMICS

    AAKASH SERIES|Exercise EXERCISE - 3|33 Videos

Similar Questions

Explore conceptually related problems

Why do we jerk a clinical thermometer before we measure body temperature?

(A) : A clinical thermometer is usually much shorter than a laboratory thermometer. ( R) : In clinical thermometer only a limited range of temperature is required.

Fill in the blanks Doctor uses _____________ thermometer to measure the human body temperature.

A hot body placed in air is cooled down according to Newtons Law of cooling, the rate of decrease of temperature being beta times the temperature difference from the surrounding. Starting from t = 0, the time in which the body will loose half the maximum heat it can loose,

For a spontaneous reaction, the free energy change must be negative. DeltaG=DeltaH-TDeltaS is the enthalpy change during the reaction. T is absolute temperature, and AS is the change in entropy during the reaction. Consider a reaction such as the formation ofan oxide . M+O_(2) MO Dloxygen is used wp in the course of this reaction. Gases have a more random structure (less ordered) than liquid or solids consequently gases have a higher entropy than liquids and solids, in this reaction (entropy or randomness) decreases, hence is negative. Thus, the temperature is raised the DeltaS becomes more negative. Since, TDeltaS is subtracted in the equation, then SG becomes less negative. Thus, the free energy changes increases with the increase in temperature. The free energy changes that occur when one mole of common reactant in this case dioxygen) is we may e plotted graphically against temperature for a number of reactions of metals to their oxides. The following plot is called an Ellingham diagram for metal oxide. Understanding of Ellingham diagram is extremely important for the efficient extraction of metals. Which of the following elements can be prepared by heating the oxide above 400^(@)C ?