The heat radiation from the glowing wire heats the black paper

Watch an experimental video in which thermal radiation heats a piece of black paper. Answer the question. Justify your answers.

Test results

Maximum temperature of sensor covered with black paper $t_{m}^{\circ}$ ( $^{\circ} C$ )
The maximum temperature of the uncovered sensor $t_{k}^{\circ}$ ( $^{\circ} C$ )
Temperature difference $t_{m}^{\circ} - t_{k}^{\circ}$ ( $^{\circ} C$ )